CN111569884B - Ni-Fe catalyst and preparation method and application thereof - Google Patents
Ni-Fe catalyst and preparation method and application thereof Download PDFInfo
- Publication number
- CN111569884B CN111569884B CN202010459867.9A CN202010459867A CN111569884B CN 111569884 B CN111569884 B CN 111569884B CN 202010459867 A CN202010459867 A CN 202010459867A CN 111569884 B CN111569884 B CN 111569884B
- Authority
- CN
- China
- Prior art keywords
- catalyst
- nickel
- nitrate solution
- foamed nickel
- deionized water
- 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.)
- Active
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 40
- 229910003271 Ni-Fe Inorganic materials 0.000 title claims description 20
- 238000002360 preparation method Methods 0.000 title abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 31
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 239000002243 precursor Substances 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims abstract description 5
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 235000019441 ethanol Nutrition 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims abstract description 4
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract description 4
- 238000005868 electrolysis reaction Methods 0.000 description 8
- 238000004070 electrodeposition Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010411 electrocatalyst Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000349 field-emission scanning electron micrograph Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- HTXDPTMKBJXEOW-UHFFFAOYSA-N iridium(IV) oxide Inorganic materials O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
-
- 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
- C25B11/02—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
- 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
-
- 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
- C25B11/055—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
- C25B11/057—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of a single element or compound
-
- 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
- C25B11/091—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
-
- 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)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of a NiFe catalyst, which comprises the following steps: step 1: cutting the foamed nickel substrate and the carbon paper, sequentially cleaning with acetone, ethanol and deionized water, and drying for later use; step 2: respectively preparing ferric nitrate and nickel nitrate solution for later use; and step 3: respectively adding the ferric nitrate solution and the nickel nitrate solution obtained in the step 2 into ethylene glycol, and then adding deionized water and ammonium fluoride; performing ultrasonic dispersion to form a uniform precursor solution; and 4, step 4: putting clean foam nickel as a cathode and carbon paper as an anode into a precursor solution preheated to 40 ℃, and standing; and 5: fixing the cathode and the anode, applying voltage at two ends by using a voltage-stabilized power supply, and maintaining for 5min; step 6: and taking down the foamed nickel deposited with the black catalyst, soaking the foamed nickel in absolute ethyl alcohol for cleaning, taking out the foamed nickel and drying the foamed nickel to obtain the NiFe catalyst. The NiFe catalyst prepared by the invention has excellent electrolytic water performance, simple preparation method, low cost and excellent industrialization prospect.
Description
Technical Field
The invention relates to a Ni-Fe-based catalyst with high-efficiency water electrolysis and a preparation method and application thereof.
Background
Electrocatalytic oxidation of water (OER) is a crucial reaction in the field of electrochemistry. The method is an anode reaction for preparing hydrogen by electrolyzing water, preparing hydrocarbon by electrochemically reducing carbon dioxide, and synthesizing ammonia by electrochemically reducing nitrogen. Noble metal catalysts represented by IrO2 are considered to be the best oxygen evolution reaction catalysts, but they are expensive and have poor stability in alkaline environments, and are not sufficient to stably operate for a long time under large current electrolysis conditions. In addition, since OER is a four-electron process, kinetics are slow and overpotential is high. Therefore, factors such as energy consumption, production efficiency, cost, etc. limit the wide application of such catalysts.
Disclosure of Invention
The invention aims to solve the problems of high manufacturing cost, high overpotential, difficulty in high-efficiency electrolysis for a long time and the like of the existing electrocatalyst, and provides a high-efficiency water electrolysis catalyst and a preparation method for quickly and efficiently preparing the catalyst at low cost.
In order to achieve the above object, the present invention provides a method for preparing a Ni-Fe catalyst, comprising the steps of:
step 1: cutting a foamed nickel substrate (but not limited to foamed nickel) and carbon paper, sequentially cleaning with acetone, ethanol and deionized water, and drying for later use;
step 2: respectively preparing ferric nitrate and nickel nitrate solution for later use;
and 3, step 3: respectively adding the ferric nitrate solution and the nickel nitrate solution obtained in the step 2 into ethylene glycol, and then adding deionized water and ammonium fluoride; performing ultrasonic dispersion to form a uniform precursor solution;
and 4, step 4: putting clean foam nickel as a cathode and carbon paper as an anode into a precursor solution preheated to 40-45 ℃, and standing;
and 5: fixing the cathode and the anode, applying voltage at two ends by using a voltage-stabilized power supply, and preferably selecting the electrodeposition time to be 5min;
step 6: and taking down the foamed nickel deposited with the black catalyst, soaking the foamed nickel in absolute ethyl alcohol for cleaning, taking out the foamed nickel and drying the foamed nickel to obtain the NiFe catalyst.
Preferably, the concentration of the ferric nitrate solution and the concentration of the nickel nitrate solution in the step 2 are both 305 to 315mmol/L.
Preferably, the volume ratio of the ferric nitrate solution, the nickel nitrate solution, the deionized water and the ethylene glycol in the step 3 is 0.7.
The invention also provides the Ni-Fe catalyst prepared by the method.
The invention also provides application of the Ni-Fe catalyst in alkaline OER reaction.
The invention has the beneficial effects that:
1. the Ni-Fe-based catalyst is applied to alkaline OER reaction, has excellent performance and can efficiently electrolyze water;
2. OER in 1M KOH of the present invention at 10mA/cm 2 The overpotential of (A) is only 220-230mV, 100mA/cm 2 The overpotential of the membrane is 255-266 mV, and the performance is far superior to that of the commercial RuO 2 ，IrO 2 .
3. The catalyst prepared by the invention shows excellent stability at 100mA/cm 2 And 500mA/cm 2 Under the condition, the electrolysis is carried out for 55 hours continuously, and no obvious fading phenomenon is shown.
4. The raw materials for preparing the catalyst are all cheap raw materials, the preparation method is simple and efficient, the electrode preparation efficiency is improved, the electrode preparation cost is greatly reduced, and the method is very favorable for industrial application.
Drawings
FIG. 1 is an XED pattern of a Ni-Fe catalyst prepared in example 1 of the present invention and an XRD pattern of a foamed nickel substrate;
FIG. 2 is an XPS plot of Ni-Fe catalyst prepared in example 1 of the present invention;
FIG. 3 is an SEM image of Ni-Fe catalyst prepared in example 1 of the present invention and an SEM image of foamed nickel;
FIG. 4 is a CV diagram of Ni-Fe catalyst prepared in example 1 of the present invention before and after electrolysis at constant potential, the electrolyte being 1M KOH, the scanning speed being 5mV/s;
FIG. 5 is a constant current electrolysis curve in 1M KOH electrolyte for Ni-Fe catalyst prepared in example 1 of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
The embodiment provides a preparation method of a Ni-Fe catalyst, which comprises the following specific steps:
step 1: cutting the foamed nickel substrate and the carbon paper into 0.5cm × 3.0cm, sequentially cleaning with acetone, ethanol and deionized water for 30min, and drying at 60 deg.C for use.
And 2, step: 309mmol/L ferric nitrate and nickel nitrate solutions are prepared respectively for standby.
And 3, step 3: respectively adding 0.7ml of ferric nitrate and nickel nitrate solution with the concentrations into 100ml of ethylene glycol, and then adding 0.7ml of deionized water and 0.11g of ammonium fluoride; sonicate for a period of time to form a homogeneous solution.
And 4, step 4: clean foamed nickel is used as a cathode, carbon paper is used as an anode, the two are parallel to each other and are spaced by about 2cm, and the working area is 2.0cm multiplied by 0.5cm. Put into the precursor solution preheated to 40 ℃ and stand for a while.
And 5: the cathode and the anode are kept fixed, voltage of 220V is applied to the two ends of the anode by a voltage stabilizing power supply, and the maintaining time is 5min.
Step 6: and taking down the foamed nickel deposited with the black catalyst, soaking the foamed nickel in absolute ethyl alcohol for a period of time, taking out the foamed nickel, and drying the foamed nickel at the temperature of 60 ℃ to obtain the Ni-Fe catalyst.
As shown in figure 1, the XRD pattern of the catalyst prepared by the method is consistent with that of the foamed nickel, and all the XRD patterns are diffraction peaks of metallic nickel. It is shown that the catalyst material prepared by this method does not have good crystallinity and may be amorphous.
An XPS plot of the catalyst prepared by electrodeposition is shown in FIG. 2, in which 2.A is the fine spectrum of Ni 2p, and 2.B is the fine spectrum of Fe 2 p. Showing that Ni and Fe elements are deposited on the surface of the electrode by an electrodeposition method.
The FESEM image of the catalyst prepared by electrodeposition is shown in FIG. 3. FIG. 3.A is a smooth nickel foam surface. FIG. 3.B is the surface topography after electrodeposition at equivalent magnification, where 3.C is a magnification of roughly black areas and 3.D is a magnification of roughly gray areas. Indicating that the forest-shaped catalyst is attached to the surface of the foamed nickel.
The CV curve of the catalyst prepared by electrodeposition is shown in fig. 4. The sweep rate of 50mV/s was first cycled over 50 cycles until the curve was substantially constant, and then the curve shown was obtained at a sweep rate of 5 mV/s. WhereinThe automatic iR compensation performed during the test was 75%, and the other 20% was done after the test was completed. From this curve we can obtain 10mA/cm 2 The overpotential of (A) is 223mV,100mA/cm 2 Has an overpotential of 265mV,300mA/cm 2 The overpotential of (A) is 287mV,500mA/cm 2 Is 301mV.
As shown in FIG. 5, the prepared electrodes were each charged at 100mA/cm under 1M KOH 2 And 500mA/cm 2 The electrode showed excellent stability as can be seen from the figure. In addition, at 100mA/cm 2 During electrolysis, we collected the gas at random points for a suitable period of time by the drainage method and calculated the mean faradaic efficiency of the electrolytically oxidized water obtained at this electrode to be 98.5%.
Example 2
Example 1 was repeated.
The result shows that the current density of the oxygen generated by electrolyzing water reaches 10mA/cm 2 Has an overpotential of 230mV,100mA/cm 2 Has an overpotential of 266mV,300mA/cm 2 Over-potential of 289mV.
Example 3
Example 1 was repeated.
The result shows that the current density of the electrolyzed water for generating oxygen reaches 10mA/cm 2 The overpotential of (A) is 223mV,100mA/cm 2 The overpotential of (A) is 255mV,300mA/cm 2 The overpotential of (3) is 261mV.
Examples 2 and 3 show that the process has good reproducibility.
Example 4
The applied voltage in step 5 of the preparation method was 200V, and the rest was the same as in example 1.
The result shows that the current density of the electrolyzed water for generating oxygen reaches 10mA/cm 2 The overpotential of (A) is 223mV,100mA/cm 2 The overpotential of (A) is 272mV,300mA/cm 2 Is 298mV.
Claims (4)
1. A Ni-Fe catalyst, characterized in that the Ni-Fe catalyst is prepared by a method comprising the steps of:
step 1: cutting the foamed nickel substrate and the carbon paper, sequentially cleaning with acetone, ethanol and deionized water, and drying for later use;
step 2: respectively preparing ferric nitrate and nickel nitrate solution for later use;
and 3, step 3: respectively adding the ferric nitrate solution and the nickel nitrate solution obtained in the step 2 into ethylene glycol, and then adding deionized water and ammonium fluoride; performing ultrasonic dispersion to form a uniform precursor solution;
and 4, step 4: putting clean foam nickel as a cathode and carbon paper as an anode into a precursor solution preheated to 40-45 ℃, and standing;
and 5: keeping the cathode and the anode fixed, applying voltage of 200 or 220V to the two ends by using a voltage-stabilized power supply, and maintaining for 5min;
and 6: and taking down the foamed nickel deposited with the black catalyst, soaking the foamed nickel in absolute ethyl alcohol for cleaning, taking out the foamed nickel and drying the foamed nickel to obtain the Ni-Fe catalyst.
2. The Ni-Fe catalyst of claim 1, wherein in step 2, the concentrations of the ferric nitrate solution and the nickel nitrate solution are both 305 to 315mmol/L.
3. The Ni-Fe catalyst of claim 1 wherein the volume ratio of ferric nitrate solution, nickel nitrate solution, deionized water to ethylene glycol in step 3 is 0.7.
4. Use of the Ni-Fe catalyst of any one of claims 1 to 3 in an alkaline OER reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010459867.9A CN111569884B (en) | 2020-05-27 | 2020-05-27 | Ni-Fe catalyst and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010459867.9A CN111569884B (en) | 2020-05-27 | 2020-05-27 | Ni-Fe catalyst and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111569884A CN111569884A (en) | 2020-08-25 |
| CN111569884B true CN111569884B (en) | 2022-11-11 |
Family
ID=72115696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010459867.9A Active CN111569884B (en) | 2020-05-27 | 2020-05-27 | Ni-Fe catalyst and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111569884B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102529278B1 (en) * | 2021-02-24 | 2023-05-08 | (주)오운알투텍 | Hydrogen generating electrode using nickel-iron alloy and manufacturing method thereof |
| CN115786959A (en) * | 2022-12-22 | 2023-03-14 | 大连理工大学 | Electrochemical preparation method of carbon-supported nickel-iron double-metal hydroxide catalyst for synthesizing ammonia by electro-reduction of nitrate |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898548A (en) * | 2013-03-20 | 2014-07-02 | 浙江大学 | Method for reducing CO2 under photoelectrocatalysis by using graphene and TiO2 nanotubes |
| CN107081163A (en) * | 2017-05-10 | 2017-08-22 | 北京工业大学 | A kind of NiWP electrocatalyst materials of three-dimensional structure are prepared and applied |
| CN107670667A (en) * | 2017-10-17 | 2018-02-09 | 华南理工大学 | It is a kind of to be used to analyse nanoporous Ni Fe bimetallic layered hydroxide electrocatalysis materials of oxygen and its preparation method and application |
| CN108193227A (en) * | 2016-12-08 | 2018-06-22 | 中国科学院大连化学物理研究所 | Oxygen electrode and its preparation and application are analysed in the electro-catalysis of nickel-ferric spinel base |
| CN108283926A (en) * | 2018-01-10 | 2018-07-17 | 青岛大学 | A kind of growth in situ ferronickel double-metal hydroxide preparation method with laminated structure in nickel foam |
| CN109234755A (en) * | 2018-10-30 | 2019-01-18 | 江苏大学 | A kind of layered double hydroxide composite construction elctro-catalyst and preparation method |
| CN109847760A (en) * | 2019-01-09 | 2019-06-07 | 济南大学 | It is a kind of based on the three-dimensional elctro-catalyst of stainless steel nanostructure and its application |
| CN110639525A (en) * | 2019-09-19 | 2020-01-03 | 中山大学 | Nickel oxide nanoflower/foamed nickel and electrodeposition preparation and application thereof |
| JP2020012170A (en) * | 2018-07-19 | 2020-01-23 | 時空化学株式会社 | Manufacturing method of electrode, electrode, and manufacturing method of hydrogen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326392B (en) * | 2017-05-24 | 2019-06-25 | 广西大学 | A kind of preparation method of liberation of hydrogen oxygen-separating catalyst |
| CN109967080A (en) * | 2019-03-28 | 2019-07-05 | 浙江大学 | A kind of preparation method and application for amorphous (Ni, Fe) the OOH film elctro-catalyst being supported on foam nickel surface |
-
2020
- 2020-05-27 CN CN202010459867.9A patent/CN111569884B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898548A (en) * | 2013-03-20 | 2014-07-02 | 浙江大学 | Method for reducing CO2 under photoelectrocatalysis by using graphene and TiO2 nanotubes |
| CN108193227A (en) * | 2016-12-08 | 2018-06-22 | 中国科学院大连化学物理研究所 | Oxygen electrode and its preparation and application are analysed in the electro-catalysis of nickel-ferric spinel base |
| CN107081163A (en) * | 2017-05-10 | 2017-08-22 | 北京工业大学 | A kind of NiWP electrocatalyst materials of three-dimensional structure are prepared and applied |
| CN107670667A (en) * | 2017-10-17 | 2018-02-09 | 华南理工大学 | It is a kind of to be used to analyse nanoporous Ni Fe bimetallic layered hydroxide electrocatalysis materials of oxygen and its preparation method and application |
| CN108283926A (en) * | 2018-01-10 | 2018-07-17 | 青岛大学 | A kind of growth in situ ferronickel double-metal hydroxide preparation method with laminated structure in nickel foam |
| JP2020012170A (en) * | 2018-07-19 | 2020-01-23 | 時空化学株式会社 | Manufacturing method of electrode, electrode, and manufacturing method of hydrogen |
| CN109234755A (en) * | 2018-10-30 | 2019-01-18 | 江苏大学 | A kind of layered double hydroxide composite construction elctro-catalyst and preparation method |
| CN109847760A (en) * | 2019-01-09 | 2019-06-07 | 济南大学 | It is a kind of based on the three-dimensional elctro-catalyst of stainless steel nanostructure and its application |
| CN110639525A (en) * | 2019-09-19 | 2020-01-03 | 中山大学 | Nickel oxide nanoflower/foamed nickel and electrodeposition preparation and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111569884A (en) | 2020-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110201670B (en) | Ferronickel double-metal hydroxide/foamed nickel catalyst based on ferric trichloride/urea eutectic solvent, and preparation method and application thereof | |
| CN110205636B (en) | Preparation method of self-supporting three-dimensional porous structure bifunctional catalytic electrode | |
| CN110479281B (en) | Electro-catalyst based on FeOOH-NiOOH/NF and preparation method | |
| CN108671923B (en) | Copper oxide/cobalt oxide core-shell structure catalyst for water electrolysis and preparation method thereof | |
| CN110639566B (en) | Full-hydrolysis catalyst and preparation method and application thereof | |
| CN108425144B (en) | Preparation method of karst foam nickel for producing oxygen by electrocatalytic total decomposition of hydrogen in water | |
| CN113512731B (en) | Oxygen evolution electrocatalyst, preparation method and application thereof, and water electrolysis device | |
| CN111686736A (en) | Preparation method of NiFe-LDH/NF three-dimensional self-supporting electrolytic water oxygen evolution catalyst containing high-activity high-valence iron | |
| CN111905744A (en) | Nickel-iron hydroxide composite material, catalyst, preparation method and application | |
| CN110791772A (en) | Method for preparing high-activity oxygen evolution electrode material through electrochemical induction | |
| CN111569884B (en) | Ni-Fe catalyst and preparation method and application thereof | |
| CN113136597B (en) | Copper-tin composite material and preparation method and application thereof | |
| CN110314690A (en) | Bimetallic sulfide Ni with heterogeneous interface coupling3S2/ FeS composite material and preparation method and application | |
| CN110965076A (en) | Preparation method of electrolytic water electrode with double-function three-dimensional layered core-shell structure | |
| CN114959768B (en) | Nickel-based oxygen evolution electrode, and preparation method and application thereof | |
| CN113235125B (en) | Nickel-based NiCo 2 O 4 Electrocatalyst and its use in electrocatalytic oxidation of glycerol | |
| CN113443610B (en) | Ruthenium selenide nanosphere electrocatalyst and preparation method and application thereof | |
| CN110813330A (en) | Co-Fe @ FeF catalyst and two-dimensional nano-array synthesis method | |
| CN114351165A (en) | Preparation method and application of three-dimensional core-shell structure dual-function seawater electrolysis catalyst | |
| CN110230072B (en) | Preparation method and application of N-NiZnCu LDH/rGO nanosheet array material on foamed nickel | |
| CN110408947B (en) | Nickel-cobalt oxide electrode material of composite silver oxide and preparation method and application thereof | |
| CN113249743B (en) | Catalyst for electrocatalytic oxidation of glycerol and preparation method thereof | |
| CN115652342A (en) | Method for producing formic acid by coupling anode methanol oxidation and cathode carbon dioxide reduction | |
| CN114808014A (en) | Novel multilayer metal hydroxide electrocatalyst, preparation method and application thereof | |
| CN111573788B (en) | Bimetal phosphide electrode material and preparation method and application thereof |
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 |