CN110656348A - Electrocatalytic oxygen evolution electrode and preparation and application thereof - Google Patents
Electrocatalytic oxygen evolution electrode and preparation and application thereof Download PDFInfo
- Publication number
- CN110656348A CN110656348A CN201911022577.1A CN201911022577A CN110656348A CN 110656348 A CN110656348 A CN 110656348A CN 201911022577 A CN201911022577 A CN 201911022577A CN 110656348 A CN110656348 A CN 110656348A
- Authority
- CN
- China
- Prior art keywords
- oxygen evolution
- evolution electrode
- chromium
- electrocatalytic
- electrocatalytic oxygen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 239000001301 oxygen Substances 0.000 title claims abstract description 95
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 95
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 95
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 46
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000011651 chromium Substances 0.000 claims abstract description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 41
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims abstract description 40
- 229960001545 hydrotalcite Drugs 0.000 claims abstract description 40
- 229910001701 hydrotalcite Inorganic materials 0.000 claims abstract description 40
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- 239000012266 salt solution Substances 0.000 claims abstract description 11
- 229910000604 Ferrochrome Inorganic materials 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 18
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 11
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 9
- 235000011152 sodium sulphate Nutrition 0.000 claims description 9
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical compound [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 claims description 6
- 238000005336 cracking Methods 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 5
- 229910021555 Chromium Chloride Inorganic materials 0.000 claims description 4
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 claims description 4
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 23
- 239000006260 foam Substances 0.000 abstract description 12
- 238000011161 development Methods 0.000 abstract description 7
- 238000005868 electrolysis reaction Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 229910000510 noble metal Inorganic materials 0.000 abstract description 4
- 238000005273 aeration Methods 0.000 abstract 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 17
- 239000000463 material Substances 0.000 description 15
- 239000003054 catalyst Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000002351 wastewater Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000010842 industrial wastewater Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 150000001450 anions Chemical class 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 229910001430 chromium ion Inorganic materials 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000975 co-precipitation Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 239000010411 electrocatalyst Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- -1 iron ions Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- 229940010514 ammonium ferrous sulfate Drugs 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- IMBKASBLAKCLEM-UHFFFAOYSA-L ferrous ammonium sulfate (anhydrous) Chemical compound [NH4+].[NH4+].[Fe+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O IMBKASBLAKCLEM-UHFFFAOYSA-L 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 238000004528 spin coating Methods 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- 238000004627 transmission electron microscopy Methods 0.000 description 3
- 229910021642 ultra pure water Inorganic materials 0.000 description 3
- 239000012498 ultrapure water Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 2
- 238000004523 catalytic cracking Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000004299 exfoliation Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000004729 solvothermal method Methods 0.000 description 2
- 238000004506 ultrasonic cleaning Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical class [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
- C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
- C25B11/031—Porous electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
- C25D9/08—Electrolytic coating other than with metals with inorganic materials by cathodic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
- C02F2001/46138—Electrodes comprising a substrate and a coating
- C02F2001/46142—Catalytic coating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46152—Electrodes characterised by the shape or form
- C02F2001/46157—Perforated or foraminous electrodes
- C02F2001/46161—Porous electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention belongs to the technical field of environmental water treatment and electrocatalysis, and provides an electrocatalysis oxygen evolution electrode and preparation and application thereof. Forming a standard electrode system by taking trivalent chromium base salt solution as electrolyte solution, foam nickel as a cathode and iron as an anode; connecting the positive pole of the direct current with the anode, connecting the negative pole with the cathode, and introducing N into the electrolyte solution2Stopping aeration after a period of time, and then carrying out electrolysis reaction at constant potential or constant current until the electrolyte solution becomes colorlessAnd taking out the cathode, cleaning and drying to obtain the electrocatalytic oxygen evolution electrode. The electrocatalytic oxygen evolution electrode takes foamed nickel as a substrate, takes ferrochrome hydrotalcite loaded and grown on the foamed nickel as an active component, and the ferrochrome hydrotalcite is of a three-dimensional sheet structure and has a very large electrochemical active area. The electrocatalytic oxygen evolution electrode alkaline medium is used as an anode to electrolyze water to generate oxygen, shows excellent oxygen evolution activity, and can replace noble metals to promote the development of an electrolyzed water system in the alkaline medium.
Description
Technical Field
The invention belongs to the technical field of environmental water treatment and electrocatalysis, and particularly relates to an electrocatalysis oxygen evolution electrode and preparation and application thereof.
Background
Hydrotalcite is a double-layer sheet metal hydroxide, and the most common methods for synthesizing hydrotalcite at present mainly comprise two methods: one is an oxidation method and one is a coprecipitation method. The two processes are briefly described below by way of example with Fe/Al-LDH (Fe/Al-double hydroxide).
The oxidation process is carried out in a neutral or alkaline environment with anions (SO)4 2-、CO3 2-、Cl-Etc.) in the presence of an oxidizing agent (O)2、H2O2、K2MnO7Etc.) are added to M in a certain amount2+In the solution, the hydrotalcite is obtained by partial oxidation. In the preparation of FeAl-LDH, firstly a certain amount of FeSO is dissolved in the solution4And Al2(SO4)3The pH value is adjusted to be neutral, a certain amount of hydrogen peroxide is added to fully react, and the generated precipitate is FeAl-LDH with sulfate radical as interlaminar anion. The oxidation method mainly has two problems, one is that the strength and the dosage of the oxidant can have certain influence on the formation of the hydrotalcite(ii) a Second is OH-/M2+And pH are also important factors affecting hydrotalcite. From this, it is clear that although the principle of the oxidation method for producing hydrotalcite is simple, oxidation of an oxidizing agent, pH, and hydroxide is difficult to control during the operation, and therefore hydrotalcite is generally not produced by the oxidation method.
The coprecipitation method is to add a certain amount of M under the condition of no oxygen2+、M3+Adding a certain amount of sodium hydroxide into water according to a certain proportion, slowly stirring to form hydrotalcite containing specific anions (SO)4 2-、CO3 2-、Cl-Etc.). When FeAl-LDH is prepared by a coprecipitation method, ferrous salt and trivalent aluminum salt in a certain proportion are dissolved in deionized water, the pH value is adjusted to about 9-10 by sodium hydroxide, the mixture is slowly stirred until the precipitation is complete, and the obtained precipitation is FexAly-LDH。
In conclusion, different M's were used in the synthesis of hydrotalcite by both the oxidation and coprecipitation methods2+/M3+And different OH-The content of (a) will have different effects on the formation of hydrotalcite and different products will be formed.
Hydrogen is a green and environment-friendly renewable energy source which can replace fossil energy. The electrolysis of water to produce hydrogen is one of the most efficient ways. However, since the electrolytic water is very slow in dynamics and has a large reaction overpotential, the oxygen evolution half-reaction of the anode severely limits the hydrogen evolution reaction efficiency of the cathode. Therefore, the development of highly efficient electrocatalytic oxygen evolution catalysts is of great importance to drive the commercialization of energy storage and conversion technologies. The noble metal catalyst has good catalytic performance for electrocatalytic oxygen evolution, but has high catalytic cost and poor stability. With the continuous development of material chemistry and the continuous innovation of synthesis technology, the practical process of preparing the low-cost high-efficiency OER (oxygen evolution reaction) catalyst is greatly enhanced.
Recent studies have shown that layered double oxides or hydroxides exhibit high activity and stability in electrocatalytic oxygen production reactions. The exchangeable anions between the layers are balanced with the positive charges between the layers, so that the catalyst presents electric neutrality and is easy to be loaded on a proper metal substrate. However, the traditional preparation method of the layered bimetallic catalyst loaded on the foamed nickel generally adopts a solvothermal method or methods such as spin coating and spray coating, and the catalyst is dispersed unevenly and combined infirm on the surface of the carrier, so that the charge transmission is hindered, the electrode is easy to fall off, and the final catalytic activity and the service life of the electrode are seriously influenced.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide an electrocatalytic oxygen evolution electrode, which is prepared from industrial wastewater and has excellent catalytic activity and stability, and a preparation and application thereof.
The invention provides a preparation method of an electrocatalytic oxygen evolution electrode, which is characterized by comprising the following steps: step 1, taking a trivalent chromium base salt solution as an electrolyte solution, taking foamed nickel as a cathode and taking iron as an anode to form a standard electrode system; step 2, connecting the positive pole of the direct current with the anode, connecting the negative pole of the direct current with the cathode, and introducing N into the electrolyte solution2Stopping ventilation after a period of time, then carrying out electrolytic reaction at constant potential or constant current until the electrolyte solution becomes colorless, taking out the cathode, cleaning, and drying at room temperature to obtain the electrocatalytic oxygen evolution electrode.
The preparation method of the electrocatalytic oxygen evolution electrode provided by the invention can also have the following characteristics: wherein, in the step 2, N is introduced into the electrolyte solution2The time of the reaction is 20min to 30 min.
The preparation method of the electrocatalytic oxygen evolution electrode provided by the invention can also have the following characteristics: wherein, the trivalent chromium-based salt contains chromium-based soluble salt, and the chromium-based soluble salt is any one or more of chromium chloride, chromium nitrate or chromium sulfate.
The preparation method of the electrocatalytic oxygen evolution electrode provided by the invention can also have the following characteristics: wherein the trivalent chromium-based salt contains sodium sulfate.
The preparation method of the electrocatalytic oxygen evolution electrode provided by the invention can also have the following characteristics: wherein, in the chromium-based salt solution, the molar concentration of sodium sulfate is 5 mmol/L-10 mmol/L, and the molar concentration of chromium element is 100 mmol/L-500 mmol/L.
The preparation method of the electrocatalytic oxygen evolution electrode provided by the invention can also have the following characteristics: wherein in the step 2, the current is less than 0.5mA/cm during the electrolytic reaction2。
The preparation method of the electrocatalytic oxygen evolution electrode provided by the invention can also have the following characteristics: in the step 1, the purity of the foamed nickel is 99.99%, the foamed nickel has a three-dimensional porous structure, and the porosity is about 95%.
The invention also provides an electrocatalytic oxygen evolution electrode which is prepared by the preparation method of the electrocatalytic oxygen evolution electrode and is characterized in that the electrode substrate of the electrocatalytic oxygen evolution electrode is foamed nickel, the active component is ferrochrome hydrotalcite, and the ferrochrome hydrotalcite is loaded and grown on the foamed nickel.
The invention also provides the application of the electrocatalytic oxygen evolution electrode in electrocatalytic cracking water oxygen evolution, which is characterized in that the electrocatalytic oxygen evolution electrode is used as an anode in an alkaline medium to electrolyze water to generate oxygen.
In the application of the electrocatalytic oxygen evolution electrode provided by the invention in electrocatalytic cracking water oxygen evolution, the electrocatalytic oxygen evolution electrode also has the following characteristics: wherein the alkaline medium is potassium hydroxide solution or sodium hydroxide solution, and the concentration is 0.1-10 mol/L.
Action and Effect of the invention
According to the preparation method of the electrocatalytic oxygen evolution electrode, a trivalent chromium base salt solution is used as an electrolyte solution, foamed nickel is used as a cathode, and iron is used as an anode to form a standard electrode system; connecting the positive pole of the direct current with the anode, connecting the negative pole of the direct current with the cathode, and introducing N into the electrolyte solution2After stopping introducing the gas for a period of time, carrying out electrolytic reaction by constant potential or constant current to obtain the electrocatalytic oxygen evolution electrode. In the reaction process, anode iron is dissolved and adsorbed near a cathode under the action of an electric field, and the cathode reduces water to generate hydroxyl to create an alkaline environment so as to promote iron ions and chromium ions in the solution to generate iron-chromium hydrotalcite to be loaded on the foamed nickel. As the electrolysis proceeds, the excess chromium ions are directed to the iron ions free in solutionThe iron-chromium hydrotalcite is generated by combination and is settled in water in the form of floc until chromium ions in the solution are completely removed. Because the electrochemical sacrificial anode method is adopted for one-step synthesis, raw materials are derived from industrial wastewater, the traditional hydrotalcite preparation method by solvothermal or chemical precipitation-spin coating and the like is abandoned, and the conditions of high temperature, high pressure and the like are not needed, so that the preparation method has the advantages of simple process, mild conditions and environmental friendliness, and is suitable for the application of industrial electrolyzed water.
The electrode substrate of the prepared electrocatalytic oxygen evolution electrode is foamed nickel, and the active component is iron-chromium hydrotalcite loaded and grown on the foamed nickel.
The prepared electro-catalytic oxygen evolution electrode is used in electro-catalytic cracking water oxygen evolution, and because the iron-chromium hydrotalcite generated by cathode reduction is of a three-dimensional sheet structure, the structure has a very large electrochemical active area, and the oxygen evolution activity of the electro-catalyst is greatly increased. In addition, the iron-chromium hydrotalcite is reduced and grown on the foamed nickel substrate by utilizing the action of an external electric field and an alkaline environment created by hydroxyl generated by cathode reduced water, so that the charge transmission efficiency and the structural stability are ensured, the final catalytic activity of the electrode is enhanced, and the service life is prolonged. Therefore, the prepared electrocatalytic oxygen evolution electrode shows excellent oxygen evolution activity in an alkaline medium, and the current density is 100mA/cm2Can reach over potential of 290mV, and can replace noble metal to promote the development of an electrolytic water system in an alkaline medium.
In conclusion, the embodiment of the invention prepares the electrocatalyst by using the industrial chromium-containing wastewater, the reaction condition is mild, the environment is friendly, and the preparation method is simple and convenient. Cr in the material is directly derived from trivalent Cr in industrial wastewater, and pollutant Cr in the wastewater is degraded in a flocculation sedimentation mode in the process of gradually synthesizing the material. The iron-chromium hydrotalcite nano material loaded on the foamed nickel and generated by the electrochemical sacrificial anode method has better development prospect in the electrocatalytic oxygen evolution reaction. Not only solves the preparation problem of the layered bimetallic material loaded on the foamed nickel, but also can degrade the industrial chromium-containing wastewater by 100 percent. The method has clear and novel design thought and simple and convenient operation, and accords with the concept of green chemistry.
Drawings
FIG. 1 is a scanning electron micrograph of a FeCrxH hydrotalcite supported on nickel foam grown in example 1 of the present invention;
FIG. 2 is a transmission electron microscopy mapping (element distribution) graph of the iron-chromium hydrotalcite material exfoliated by ultrasonic exfoliation loaded on foamed nickel in example 1 of the present invention;
FIG. 3 is the results of the activity test of the electrocatalytic oxygen evolution electrode in example 1 of the present invention; and
fig. 4 is the result of the activity test of the electrocatalytic oxygen evolution electrode in example 2 of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the electrocatalytic oxygen evolution electrode and the preparation and the application thereof are specifically described in the following with the embodiment and the attached drawings.
The raw materials and reagents used in the following examples can be purchased from conventional commercial sources unless otherwise specified.
The preparation method provided by the invention specifically comprises the following steps:
step 1, forming a standard electrode system by taking trivalent chromium base salt solution as electrolyte solution, foam nickel as a cathode and iron as an anode.
Wherein, the purity of the foamed nickel is 99.99%, the foamed nickel has a three-dimensional porous structure, and the porosity is about 95%.
The trivalent chromium-based salt comprises chromium-based soluble salt and anhydrous sodium sulfate, wherein the chromium-based soluble salt is any one or more of chromium chloride, chromium nitrate or chromium sulfate. In the chromium-based salt solution, the molar concentration of sodium sulfate is 5 mmol/L-10 mmol/L, and the molar concentration of chromium element is 100 mmol/L-500 mmol/L.
In the step 2, the current is less than 0.5mA/cm during the electrolytic reaction2In order to completely avoid the influence of dissolved oxygen, the prepared electrolyte solution needs to be introduced with nitrogen N before electrolysis220min～30min。
And 2, after the reaction is finished, taking out the cathode, cleaning the redundant electrolyte and precipitate with ultrapure water, and drying at room temperature to obtain the electrocatalytic oxygen evolution electrode.
In the embodiment of the invention, trivalent chromium base salt solution is used for simulating chromium-containing industrial wastewater, and the preparation method comprises the following steps: taking anhydrous sodium sulfate as a main electrolyte, and directly dissolving trivalent chromium salt in a sodium sulfate solution; wherein the molar concentration of the sodium sulfate is 5 mmol/L-10 mmol/L, and the molar concentration of the chromium element is 100 mmol/L-500 mmol/L.
Furthermore, in the examples of the present invention, a commercial nickel foam was pretreated: ultrasonic cleaning in acetone or alcohol to eliminate oil stain on the surface of foamed nickel, water washing to neutrality, ultrasonic activation in 1-2 mol/L hydrochloric acid, and final ultrasonic cleaning in ultrapure water at least twice.
In addition, in the embodiment of the present invention, the iron plate is pretreated: cutting the iron plate into proper size with a saw blade, and polishing with 100-1200 mesh abrasive paper until the oxide on the surface of the iron plate is completely cleaned.
In addition, in the embodiment of the invention, the prepared trivalent chromium base salt solution is used as an electrolyte solution, the pretreated foamed nickel is used as a cathode, and the treated iron plate is used as an anode to form a standard electrode system.
In the embodiment of the invention, the content change of trivalent chromium in the solution in the reaction process is detected by adopting an ammonium ferrous sulfate titration method, and the degradation effect of the trivalent chromium in the simulated wastewater is judged.
The electrode substrate of the prepared electrocatalytic oxygen evolution electrode is foamed nickel, and the active component is iron-chromium hydrotalcite loaded and grown on the foamed nickel.
The prepared electrocatalytic oxygen evolution electrode is applied to electrocatalytic cracking water oxygen evolution in an alkaline environment, and the specific process is as follows:
(1) performing electrochemical representation by using a CHI660 electrochemical workstation of a three-electrode electrochemical system, wherein the working electrode is an Ag/AgCl electrode with saturated potassium chloride filling liquid, a platinum wire is used as a counter electrode, the prepared electro-catalytic oxygen evolution electrode is used as the working electrode, the electrolyte is 0.1-10 mol/L potassium hydroxide solution, inert gas is continuously introduced in the test process for saturation treatment so as to thoroughly avoid the influence of dissolved oxygen, and the test temperature is kept at 25 ℃.
(2) Before recording the catalytic activity, the stability of the catalyst was determined by first performing 100 cyclic voltammetric scans in potassium hydroxide solution using sweep voltammetry (LSV). The test scan rate was 1 mV. s-1The electrode potentials are all subjected to iR correction for eliminating the influence caused by solution resistance and the like, and are converted into electrode potentials relative to a reversible electrode (RHE), and the calculation formula is as follows: overpotential + electrode potential + pH 0.0591+0.1976-iR-1.23v (v).
< example 1>
In this example, when the nickel foam was pretreated, the nickel foam was ultrasonically activated in 1mol/L hydrochloric acid. When the iron plate is pretreated, sand paper of 100 meshes, 500 meshes, 1000 meshes and 1200 meshes is sequentially used for polishing until iron oxide on the surface is completely cleaned.
Step 1, preparing an electrolyte solution by using chromium chloride and anhydrous sodium sulfate, wherein the molar concentration of the sodium sulfate is 5mmol/L, and the molar content of chromium element is 200 mmol/L. Introducing nitrogen for 30min for later use to completely avoid the influence of dissolved oxygen.
And 2, taking the solution prepared in the step 1 as an electrolyte solution, taking the pretreated foamed nickel as a cathode, and taking the treated iron plate as an anode to form a standard electrode system. Connecting the positive pole of the direct current with an iron plate, connecting the negative pole of the direct current with the nickel foam, and introducing N into the electrolyte solution220min, then constant current 0.4mA/cm2And carrying out an electrolytic reaction for 1h, turning the electrolyte solution into colorless, turning off the power supply, and taking out the electrode. And (3) standing the reaction solution to ensure that flocs in the solution are completely settled and centrifugally removed. Washing the cathode with ultrapure water to remove electrolyte and precipitate, cleaning, and drying at room temperatureAnd drying to obtain the electrocatalytic oxygen evolution electrode.
In the electrolytic reaction in the step 2, the content change of trivalent chromium in the solution in the reaction process is detected by adopting an ammonium ferrous sulfate titration method, and the degradation effect of the trivalent chromium in the simulated wastewater is judged.
The obtained electrocatalytic oxygen evolution electrode was scanned by means of a scanning electron microscope (model ESCALB 250, manufactured by Thermo-VGscientific Co., U.S.A.) and the scanning electron microscope is shown in FIG. 1.
FIG. 1 is a scanning electron micrograph of a FeCr-LDH @ NF (FeCr-LDH @ NF) material supported on nickel foam grown in example 1 of the present invention.
FIG. 1 shows scanning electron micrographs of materials at different magnifications. As can be seen from fig. 1, the prepared ferrochrome hydrotalcite was flaky and grown on the surface of the foamed nickel skeleton, thereby indicating the successful preparation of the catalyst electrode material. The foam nickel skeleton can be obviously seen from figures 1a and 1b, a layer of substance is uniformly coated on the foam nickel skeleton material, the coating material can be seen from figures 1c and 1d to be formed by stacking porous sheet materials and is preliminarily judged to be an iron-chromium hydrotalcite material, and figures 1e and 1f can show that the iron-chromium hydrotalcite is uniform in shape and size and is formed by stacking sheets with the size of 200 nm-300 nm.
The FeCr-LDH thus obtained was characterized by a transmission electron microscope (manufactured by Thermo-VGscientific Co., U.S.A.) and the transmission electron microscopy mapping (element distribution) was shown in FIG. 2.
FIG. 2 is a transmission electron microscopy element distribution diagram of an iron-chromium hydrotalcite (FeCr-LDH) material obtained by carrying iron-chromium hydrotalcite grown on foamed nickel in example 1 of the present invention and carrying out ultrasonic exfoliation.
As shown in fig. 2, fig. 2b is a general view of fig. 2a, and fig. 2c and 2d show the element distribution diagrams of fe and cr, respectively, wherein the fe and cr elements can be found to be uniformly distributed, which indicates the successful preparation of the ferrochrome hydrotalcite. Fig. 2e is an element energy spectrum and an element ratio chart of iron and chromium, wherein the content of the iron element is 75.95%, and the content of the chromium element is 24.05%.
The prepared electrocatalytic oxygen evolution electrode is used for electrocatalytic cracking water oxygen evolution reaction in an alkaline environment. Wherein the electrolyte is 1M or 0.1M potassium hydroxide solution. The test results are shown in FIG. 3.
Fig. 3 is the result of the activity test of the electrocatalytic oxygen evolution electrode in example 1 of the present invention. Wherein the abscissa represents the overpotential (unit: V) and the ordinate represents the current density (unit: mA · cm)-2)。
As shown in FIG. 3, the electrocatalytic electrode shows a current density of 50mA/cm in an electrolyte with an extremely high oxygen evolution activity of 1mol/L in an alkaline medium2And 100mA/cm2The overpotential is 265mV and 290mV, and the current density is 50mA/cm in 0.1mol/L electrolyte2And 100mA/cm2Next, the overpotential was 275mV and 320 mV. The oxygen evolution reaction of the catalyst shows extremely high catalytic activity.
< example 2>
The same operation as that in embodiment 1 will not be described again in this embodiment.
In this example, when the nickel foam was pretreated, the nickel foam was ultrasonically activated in 2mol/L hydrochloric acid. When the iron plate is pretreated, sand paper of 100 meshes, 500 meshes and 1000 meshes is sequentially used for polishing until iron oxide on the surface is completely cleaned.
Step 1, preparing an electrolyte solution by using chromium sulfate and anhydrous sodium sulfate, wherein the molar concentration of the sodium sulfate is 10mmol/L, and the molar content of chromium element is 100 mmol/L. Introducing nitrogen for 30min for later use to completely avoid the influence of dissolved oxygen.
And 2, carrying out an electrolytic reaction for 2 hours at a constant potential of 0.1V, turning the electrolyte solution into colorless, turning off a power supply, and taking out the electrode. And cleaning and drying to obtain the electrocatalytic oxygen evolution electrode.
The electrocatalytic oxygen evolution electrode obtained in this example was subjected to an activity test, the test results of which are shown in fig. 4.
Fig. 4 is the result of the activity test of the electrocatalytic oxygen evolution electrode in example 2 of the present invention. Wherein the abscissa represents the overpotential (unit: V) and the ordinate represents the current density (unit: mA · cm)-2)。
As shown in FIG. 4, the electrocatalytic electrode showed slightly lower oxygen evolution activity in alkaline medium than the examples1, it can be seen that the content of chromium in the simulated wastewater solution influences the activity of the prepared electrocatalytic oxygen evolution catalyst. In 1mol/LKOH electrolyte, the current density of the ferrochrome hydrotalcite loaded on the foamed nickel is 50mA/cm2And 100mA/cm2Next, the overpotential was 270mV and 380 mV.
Effects and effects of the embodiments
The preparation method of the electrocatalytic oxygen evolution electrode provided by the embodiment of the invention adopts trivalent chromium base salt solution as electrolyte solution, foamed nickel as cathode and iron as anode to form a standard electrode system; connecting the positive pole of the direct current with the anode, connecting the negative pole of the direct current with the cathode, and introducing N into the electrolyte solution2After 20min to 30min, carrying out electrolytic reaction with constant potential or constant current to obtain the electro-catalytic oxygen evolution electrode. In the reaction process, anode iron is dissolved and adsorbed near a cathode under the action of an electric field, and the cathode reduces water to generate hydroxyl to create an alkaline environment so as to promote iron ions and chromium ions in the solution to generate iron-chromium hydrotalcite to be loaded on the foamed nickel. As the electrolysis proceeds, the redundant chromium ions are directly combined with iron ions free in the solution to generate iron-chromium hydrotalcite which is deposited in the form of flocs in water until the chromium ions in the solution are completely removed. Meanwhile, the content change of the trivalent chromium in the solution in the reaction process is detected by adopting an ammonium ferrous sulfate titration method, and the degradation effect of the trivalent chromium in the simulated wastewater is judged.
Because the electrochemical sacrificial anode method is adopted for one-step synthesis, raw materials are derived from industrial wastewater, the traditional hydrotalcite preparation method by solvothermal or chemical precipitation-spin coating and the like is abandoned, and the conditions of high temperature, high pressure and the like are not needed, so that the preparation method has the advantages of simple process, mild conditions and environmental friendliness, and is suitable for the application of industrial electrolyzed water.
The electrode substrate of the prepared electrocatalytic oxygen evolution electrode is foamed nickel, and the active component is iron-chromium hydrotalcite loaded and grown on the foamed nickel.
The prepared electro-catalytic oxygen evolution electrode is used in electro-catalytic cracking water oxygen evolution, and because the iron-chromium hydrotalcite generated by cathode reduction is of a three-dimensional sheet structure, the structure has great electrochemical performanceThe chemical activity area greatly increases the oxygen evolution activity of the electrocatalyst. In addition, the iron-chromium hydrotalcite is reduced and grown on the foamed nickel substrate by utilizing the action of an external electric field and an alkaline environment created by hydroxyl generated by cathode reduced water, so that the charge transmission efficiency and the structural stability are ensured, the final catalytic activity of the electrode is enhanced, and the service life is prolonged. Therefore, the prepared electrocatalytic oxygen evolution electrode shows excellent oxygen evolution activity in an alkaline medium, and the current density is 100mA/cm2Can reach over potential of 290mV, and can replace noble metal to promote the development of an electrolytic water system in an alkaline medium.
In conclusion, the embodiment of the invention prepares the electrocatalyst by using the industrial chromium-containing wastewater, the reaction condition is mild, the environment is friendly, and the preparation method is simple and convenient. Cr in the material is directly derived from trivalent Cr in industrial wastewater, and pollutant Cr in the wastewater is degraded in a flocculation sedimentation mode in the process of gradually synthesizing the material. The hydrotalcite nano material generated by the electrochemical sacrificial anode method has better development prospect in the treatment of industrial wastewater containing trivalent chromium and the electro-catalytic oxygen evolution reaction. Not only solves the preparation problem of the layered bimetallic material loaded on the foamed nickel, but also can degrade the industrial chromium-containing wastewater by 100 percent. The method has clear and novel design thought and simple and convenient operation, and accords with the concept of green chemistry.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
1. A preparation method of an electrocatalytic oxygen evolution electrode is characterized by comprising the following steps:
step 1, taking a trivalent chromium base salt solution as an electrolyte solution, taking foamed nickel as a cathode and taking iron as an anode to form a standard electrode system;
step 2, connecting the positive pole of the direct current with the anode, connecting the negative pole of the direct current with the cathode, and introducing N into the electrolyte solution2Stopping ventilation after a period of time, then carrying out electrolytic reaction at constant potential or constant current until the electrolyte solution becomes colorless, taking out the cathode, cleaning, drying at room temperature,obtaining the electrocatalytic oxygen evolution electrode.
2. The method for preparing an electrocatalytic oxygen evolution electrode according to claim 1, characterized in that:
wherein in the step 2, N is introduced into the electrolyte solution2The time of the reaction is 20min to 30 min.
3. The method for preparing an electrocatalytic oxygen evolution electrode according to claim 1, characterized in that:
the trivalent chromium-based salt contains chromium-based soluble salt, and the chromium-based soluble salt is any one or more of chromium chloride, chromium nitrate or chromium sulfate.
4. The method for preparing an electrocatalytic oxygen evolution electrode according to claim 3, characterized in that:
wherein the trivalent chromium-based salt contains sodium sulfate.
5. The method for preparing an electrocatalytic oxygen evolution electrode according to claim 4, characterized in that:
wherein, in the chromium-based salt solution, the molar concentration of the sodium sulfate is 5 mmol/L-10 mmol/L, and the molar concentration of the chromium element is 100 mmol/L-500 mmol/L.
6. The method for preparing an electrocatalytic oxygen evolution electrode according to claim 1, characterized in that:
wherein in the step 2, the current is less than 0.5mA/cm during the electrolytic reaction2。
7. The method for preparing an electrocatalytic oxygen evolution electrode according to claim 1, characterized in that:
in the step 1, the purity of the foamed nickel is 99.99%, the foamed nickel has a three-dimensional porous structure, and the porosity is about 95%.
8. An electrocatalytic oxygen evolution electrode prepared by the preparation method of the electrocatalytic oxygen evolution electrode as claimed in any one of claims 1 to 7, wherein an electrode substrate of the electrocatalytic oxygen evolution electrode is foamed nickel, an active component is ferrochrome hydrotalcite, and the ferrochrome hydrotalcite is loaded and grown on the foamed nickel.
9. The application of the electrocatalytic oxygen evolution electrode in electrocatalytic cracking water oxygen evolution is characterized in that the electrocatalytic oxygen evolution electrode is used as an anode in an alkaline medium to electrolyze water to generate oxygen,
wherein the electrocatalytic oxygen evolution electrode is as set forth in claim 7.
10. Use of an electrocatalytic oxygen evolution electrode according to claim 9 for electrocatalytic cracking of water to evolve oxygen, characterized in that:
wherein the alkaline medium is a potassium hydroxide solution or a sodium hydroxide solution, and the concentration is 0.1-10 mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911022577.1A CN110656348B (en) | 2019-10-25 | 2019-10-25 | Electrocatalytic oxygen evolution electrode and preparation and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911022577.1A CN110656348B (en) | 2019-10-25 | 2019-10-25 | Electrocatalytic oxygen evolution electrode and preparation and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110656348A true CN110656348A (en) | 2020-01-07 |
| CN110656348B CN110656348B (en) | 2022-02-22 |
Family
ID=69041735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911022577.1A Active CN110656348B (en) | 2019-10-25 | 2019-10-25 | Electrocatalytic oxygen evolution electrode and preparation and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110656348B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112044442A (en) * | 2020-09-04 | 2020-12-08 | 郑州大学 | Preparation method and application of beta-phase nickel iron hydroxide/carbon nanotube composite with atomic defects |
| CN114752946A (en) * | 2022-04-11 | 2022-07-15 | 四川大学 | Preparation method of electrocatalytic water electrolysis bipolar plate |
| CN115323393A (en) * | 2022-08-12 | 2022-11-11 | 昆明理工大学 | Method for preparing nickel-based bimetallic hydrogen evolution catalyst by anodic dissolution electrodeposition in eutectic ionic liquid |
| CN115536014A (en) * | 2022-09-21 | 2022-12-30 | 石家庄铁道大学 | Method for electrochemically preparing graphene |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965684A (en) * | 2012-10-31 | 2013-03-13 | 中南大学 | Preparation method of aluminum base hydrotalcite |
| CN106149025A (en) * | 2016-06-26 | 2016-11-23 | 北京化工大学 | An a kind of step electrosynthesis method of ferrum acrylic/hydrotalcite-like nano chip arrays |
| CN108573762A (en) * | 2018-04-17 | 2018-09-25 | 华东理工大学 | The method that electrochemistry prepares hydrotalcite in-situ treatment nuclear power plant radioactive liquid waste containing strontium |
| CN108842168A (en) * | 2018-06-29 | 2018-11-20 | 太原理工大学 | A kind of two-step electrochemical method preparation g-C3N4/ MMO compound film optoelectronic pole |
| CN108910962A (en) * | 2018-07-24 | 2018-11-30 | 中国科学院合肥物质科学研究院 | A kind of ternary CoFeCr hydrotalcite nano stick and the preparation method and application thereof |
| CN109295471A (en) * | 2018-09-26 | 2019-02-01 | 上海电力学院 | A method of iron aluminum hydrotalcite is prepared using sacrificial anode protection |
-
2019
- 2019-10-25 CN CN201911022577.1A patent/CN110656348B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965684A (en) * | 2012-10-31 | 2013-03-13 | 中南大学 | Preparation method of aluminum base hydrotalcite |
| CN106149025A (en) * | 2016-06-26 | 2016-11-23 | 北京化工大学 | An a kind of step electrosynthesis method of ferrum acrylic/hydrotalcite-like nano chip arrays |
| CN108573762A (en) * | 2018-04-17 | 2018-09-25 | 华东理工大学 | The method that electrochemistry prepares hydrotalcite in-situ treatment nuclear power plant radioactive liquid waste containing strontium |
| CN108842168A (en) * | 2018-06-29 | 2018-11-20 | 太原理工大学 | A kind of two-step electrochemical method preparation g-C3N4/ MMO compound film optoelectronic pole |
| CN108910962A (en) * | 2018-07-24 | 2018-11-30 | 中国科学院合肥物质科学研究院 | A kind of ternary CoFeCr hydrotalcite nano stick and the preparation method and application thereof |
| CN109295471A (en) * | 2018-09-26 | 2019-02-01 | 上海电力学院 | A method of iron aluminum hydrotalcite is prepared using sacrificial anode protection |
Non-Patent Citations (5)
| Title |
|---|
| HAIJUN QIU等: "A novel path to prepare Fe/Al–layered double hydroxide nanosheets by sacrificial double anodes for the treatment of Cr-containing wastewater", 《JOURNAL OF COLLOID AND INTERFACE SCIENCE》 * |
| XIN BO等: "High valence chromium regulated cobalt-iron-hydroxide for enhanced water oxidation", 《JOURNAL OF POWER SOURCES》 * |
| XIN BO等: "NiFeCr Hydroxide Holey Nanosheet as Advanced Electrocatalyst for Water Oxidation", 《ACS APPL.MATER.INTERFACES》 * |
| YANG YANG等: "Highly Active Trimetallic NiFeCr Layered Double Hydroxide Electrocatalysts for Oxygen Evolution Reaction", 《ADV. ENERGY MATER.》 * |
| 刘春香: "电沉积法制备镍铁铬氢氧化物及其在碳酸盐中析氧性能研究", 《北京化工大学硕士学位论文》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112044442A (en) * | 2020-09-04 | 2020-12-08 | 郑州大学 | Preparation method and application of beta-phase nickel iron hydroxide/carbon nanotube composite with atomic defects |
| CN112044442B (en) * | 2020-09-04 | 2022-12-13 | 郑州大学 | Preparation method and application of beta-phase nickel iron hydroxide/carbon nanotube composite with atomic defects |
| CN114752946A (en) * | 2022-04-11 | 2022-07-15 | 四川大学 | Preparation method of electrocatalytic water electrolysis bipolar plate |
| CN115323393A (en) * | 2022-08-12 | 2022-11-11 | 昆明理工大学 | Method for preparing nickel-based bimetallic hydrogen evolution catalyst by anodic dissolution electrodeposition in eutectic ionic liquid |
| CN115323393B (en) * | 2022-08-12 | 2024-05-28 | 昆明理工大学 | Method for preparing nickel-based bimetallic hydrogen evolution catalyst by anodic dissolution electrodeposition in eutectic ionic liquid |
| CN115536014A (en) * | 2022-09-21 | 2022-12-30 | 石家庄铁道大学 | Method for electrochemically preparing graphene |
| CN115536014B (en) * | 2022-09-21 | 2023-11-21 | 石家庄铁道大学 | Method for electrochemically preparing graphene |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110656348B (en) | 2022-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110656348B (en) | Electrocatalytic oxygen evolution electrode and preparation and application thereof | |
| Gonçalves et al. | Recent advances in ternary layered double hydroxide electrocatalysts for the oxygen evolution reaction | |
| CN110201670B (en) | Ferronickel double-metal hydroxide/foamed nickel catalyst based on ferric trichloride/urea eutectic solvent, and preparation method and application thereof | |
| US10854885B2 (en) | Non-noble metal electrocatalysts for oxygen depolarized cathodes and their application in chlor-alkali electrolysis cells | |
| US8956525B2 (en) | Buffered cobalt oxide catalysts | |
| CN110639566B (en) | Full-hydrolysis catalyst and preparation method and application thereof | |
| Wang et al. | Preparation of nanostructured Cu (OH) 2 and CuO electrocatalysts for water oxidation by electrophoresis deposition | |
| CN109852992B (en) | Efficient electrocatalytic full-decomposition water nanosheet array electrode and preparation method and application thereof | |
| CN109576730B (en) | Preparation method and application of iron-modified cobaltosic oxide nanosheet array electrode | |
| Liu et al. | Co-doped Ni–Mo oxides: highly efficient and robust electrocatalysts for urea electrooxidation assisted hydrogen production | |
| CN109371420B (en) | Single-layer porous nickel-iron hydrotalcite-based electrocatalytic oxygen evolution electrode and preparation method and application thereof | |
| CN111686764A (en) | Fe-Ni (OH)2/Ni3S2@ NF heterostructure and preparation method and application thereof | |
| CN113481534B (en) | Preparation method of zirconium-doped cobalt-iron layered double hydroxide with low crystallinity and application of zirconium-doped cobalt-iron layered double hydroxide in hydrogen production by water electrolysis | |
| JP2019172487A (en) | Cobalt composite γ-type manganese dioxide and method for producing the same | |
| CN115305481A (en) | Chromium oxide functionalized nickel-iron hydrotalcite nanosheet and preparation method and electrocatalysis application thereof | |
| Lv et al. | High performance of Co–P/NF electrocatalyst for oxygen evolution reaction | |
| Guo et al. | Semi-sacrificial template growth of FeS/Fe2O3 heterogeneous nanosheets on iron foam for efficient oxygen evolution reaction | |
| CN114059082B (en) | N, P co-doped NF@NiMoO 4 Hollow nanowire composite material and preparation method and application thereof | |
| CN112501650B (en) | Multi-vacancy transition metal layered dihydroxy compound, preparation method and application | |
| Perroni et al. | Stainless steel supported NiCo2O4 active layer for oxygen evolution reaction | |
| CN111686812B (en) | Ligand-activated transition metal layered dihydroxy compound, preparation method and application | |
| CN113755876B (en) | Preparation method of hollow CoOOH/FeOOH nanoparticle catalyst | |
| CN116162954A (en) | Nickel mesh-supported high-dispersion multi-metal electrocatalyst material, preparation method and application thereof | |
| CN110420649B (en) | Metal phase MoS2-CoNi(OH)2Nano composite material and preparation method and application thereof | |
| Hou et al. | Ternary iron-cobalt-molybdenum hybrid for synergistically enhanced electrochemical water oxidation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220512 Address after: 214400 No. 112, Xili Road, Ligang street, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: JIANGYIN ANUO ELECTRODE Co.,Ltd. Address before: 200090 No. 2103, Pingliang Road, Shanghai, Yangpu District Patentee before: Shanghai University of Electric Power |