CN106498430A - Low energy consumption electrochemistry hydrogen generating system based on dual-functional nanometer array electrode - Google Patents

Low energy consumption electrochemistry hydrogen generating system based on dual-functional nanometer array electrode Download PDF

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CN106498430A
CN106498430A CN201610952265.0A CN201610952265A CN106498430A CN 106498430 A CN106498430 A CN 106498430A CN 201610952265 A CN201610952265 A CN 201610952265A CN 106498430 A CN106498430 A CN 106498430A
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transition metal
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孙旭平
罗永岚
阳海
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Chengdu Jiuqi New Material Technology Co Ltd
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    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
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    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/02Sulfur, selenium or tellurium; Compounds thereof
    • B01J27/04Sulfides
    • B01J27/043Sulfides with iron group metals or platinum group metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/02Sulfur, selenium or tellurium; Compounds thereof
    • B01J27/057Selenium or tellurium; Compounds thereof
    • B01J27/0573Selenium; Compounds thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14Phosphorus; Compounds thereof
    • B01J27/185Phosphorus; Compounds thereof with iron group metals or platinum group metals
    • B01J27/1853Phosphorus; Compounds thereof with iron group metals or platinum group metals with iron, cobalt or nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/24Nitrogen compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/33Electric or magnetic properties
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    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/075Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/075Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
    • C25B11/077Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound the compound being a non-noble metal oxide
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/091Electrodes 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract

The invention discloses transistion metal compound (including phosphide, sulfide, selenides, nitride) nano-array is used for low energy consumption electrochemistry hydrogen manufacturing as small molecule electroxidation and water power reduction double-function catalyzing electrode, belong to Hydrogen Energy and fuel cell field.The present invention is simultaneously used for small molecule electroxidation and water power reduction with difunctional base metal array catalysis electrode first, and Electrochemical oxygen evolution reaction is replaced with the low small molecule electro-oxidation reaction of oxidizing potential, construct the two electrolysis systems based on double-function catalyzing electrode, low energy consumption, stable electrochemistry hydrogen manufacturing is achieved, is suitable for large-scale industry hydrogen manufacturing application.

Description

Low energy consumption electrochemistry hydrogen generating system based on dual-functional nanometer array electrode
Technical field
The invention belongs to Hydrogen Energy and fuel cell field, more particularly, are related to prepare transistion metal compound (including phosphorus Compound, sulfide, selenides, nitride) nano-array used as small molecule electroxidation and water power reduction double-function catalyzing electrode In low energy consumption electrochemistry hydrogen manufacturing.
Background technology
A large amount of consumption of fossil fuel cause serious energy crisis and environmental problem, find the height of alternative fossil fuel Effect, renewable and clean energy resource become one of most important challenge for currently being faced (Nature 2001,414,353).Hydrogen because Have can store, efficiently and receive much concern the features such as cleaning (Acc.Chem.Res.2012,45,767).Current more than 95% Hydrogen comes from fossil fuel, and water electrolysis is used as the important means of industrialization hydrogen manufacturing, relative to fossil fuel, to environment more Friendly.Water electrolysis hydrogen producing is related to two important fundamental reactions, the i.e. reduction of negative electrode water and anode water oxidation.However, kinetics Restriction require to provide overvoltage higher than theoretical decomposition voltage accelerating polarization response, cause serious electric energy loss, your gold Category such as platinum, ruthenium-oxide etc. can be effectively reduced reaction activity base, lift reaction rate, but expensive price limits which in electrolysis water Large-scale use in industry.Therefore, the electrocatalysis material for developing efficiently, stable, cheap and easy to get is used for water decomposition hydrogen manufacturing and there is weight Want meaning (Prog.Energy Combust.Sci.2010,36,307;Chem.Soc.Rev.2015,44,181; Adv.Mater.2016,28,215).And can be entered using the bifunctional electrocatalyst for water being reduced and water oxygenization all has catalysis activity One step simplify system and reduce processing cost (Science 2014,345,1593).
Water oxygen is the very crucial and extremely complex reaction of a step during electrolysis water, decide electrolysis water energy consumption and Efficiency, becomes the bottleneck (Science 2006,314,821 of water electrolysis hydrogen production;Science 2008,321,1072; J.Am.Chem.Soc.2016,138,4006).Replace water oxidation reaction to be easier the electrochemistry small molecule oxidation reaction of oxidation Lower than traditional electrolyte water hydrogen manufacturing energy consumption, but the electric catalyticing system of report is limited to the use of precious metal catalytic material at present (Nat.Commun.2014,5,4036) or limited catalytic current density (Angew.Chem.Int.Ed.2016,55,3804), And the small molecule oxidation based on non-noble metal nano array and water power reduction double-function catalyzing electrode realize the work of low energy consumption hydrogen manufacturing Have no report.
Content of the invention
In order to solve problems of the prior art, it is contemplated that overcoming the defect of existing catalyst system and catalyzing, there is provided energy Organic molecule and inorganic molecules electrochemical oxidation and in hgher efficiency, more reliable electrochemistry producing hydrogen, catalyzing electrode are enough applied to And its application.
The double-function catalyzing electrode reduced for small molecule electroxidation and water power of the present invention include active component and Conductive carrier, active component are transition metal nano-array.
According to one embodiment of application of the present invention, directly using transition metal nano-array as small molecule electroxidation Anode and water power reduction negative electrode, realize high-efficiency electrochemical hydrogen manufacturing.
According to one embodiment of application of the present invention, electrolyte is alkalescence or neutral aqueous solution.
The one embodiment of root according to application of the present invention, the transition metal nano-array contain one or more Transition metal, the transition metal be iron, cobalt, nickel, copper, molybdenum, tungsten, vanadium, titanium, zinc, aluminium, chromium, manganese, gallium, indium, germanium, Tin.
According to one embodiment of application of the present invention, the transition metal nano-array includes transition metal phosphatization Thing, transient metal sulfide, transition metal selenides, transition metal nitride.
According to one embodiment of application of the present invention, the transition metal nano-array by nano wire, nanometer rods, Nanotube, nanometer sheet, nanometer plate or its hierarchy or core shell structure etc. are constituted.
According to one embodiment of application of the present invention, the transition metal nano-array content is 0.1~ 50wt%, carrier are one or more mischmetal knot of iron, nickel, vanadium, copper, stainless steel, cobalt, titanium, molybdenum, tungsten, aluminium, zinc, chromium, manganese Structure (net/paper tinsel/piece), carbon cloth, carbon paper, electro-conductive glass piece and conductive silicon chip.
Compared with prior art, transition metal nano-array is simultaneously used for by the present invention first as double-function catalyzing electrode Small molecule electroxidation and water power reduction, realize low energy consumption electrochemistry hydrogen manufacturing, show excellent catalysis activity and structural stability, Have broad application prospects.
Description of the drawings
Fig. 1 is the Ni grown on nickel screen in embodiment 12The scanning electron microscope (SEM) photograph of P nano-chip arrays and its urge as difunctional Polarizing electrode aoxidizes hydrazine electrochemistry hydrogen manufacturing in the basic conditions.
Fig. 2 is for the scanning electron microscope (SEM) photograph of the FeP nano-chip arrays of growth on carbon cloth in embodiment 2 and as double-function catalyzing electricity Pole aoxidizes hydrazine electrochemistry hydrogen manufacturing in the basic conditions.
Fig. 3 is the NiS grown in titanium net in embodiment 62Nano-chip arrays are as double-function catalyzing electrode in alkalescence condition Lower oxidation hydrazine electrochemistry hydrogen manufacturing.
Fig. 4 is to grow Co in embodiment 9 on stainless (steel) wire4N nano-wire arrays are as double-function catalyzing electrode in alkaline bar Urea electrochemistry hydrogen manufacturing is aoxidized under part.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive Feature and/or step beyond, can combine by any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent or with similar purpose by other Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics ?.
Embodiment 1:
Step one:The distilled water of 36mL is added in polytetrafluoroethyllining lining, that is, add 1.45g nickel nitrates and 1.40g six Methine tetramine, and stir until solid be completely dissolved, formed clear solution.
Step 2:Nickel screen is put in the inner liner of reaction kettle of step one, and polytetrafluoroethyllining lining is sealed to stainless steel In mould, it is placed under sealing condition in thermostatic drying chamber and heating response 10h at 100 DEG C.
Step 3:After the completion of reaction, along with the furnace cooling to room temperature, then nickel screen taking-up, successively with distilled water and absolute ethyl alcohol Washed, and by washing after carbon cloth be placed in vacuum drying chamber and at 40 DEG C be vacuum dried 24h, obtain Ni (OH)2Nano-chip arrays.
Step 4:Presoma obtained in step 3 is placed in tube furnace and adds sodium hypophosphite, in argon atmosphere, 2h is reacted under the conditions of 300 DEG C, obtain Ni2P nano-chip arrays, its microstructure are as shown in Figure 1.
Step 5:With two panels Ni2P nano-wire arrays build two electrode systems as hydrazine oxidizing anode and water reduction negative electrode, With the 1.0M KOH containing 0.5M hydrazines as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition, concrete catalytic performance result such as Fig. 1 institutes Show.
Embodiment 2:
Step one:The distilled water of 35mL is added in polytetrafluoroethyllining lining, adds 0.4g Iron trichloride hexahydrates and 0.24g sulphur Sour sodium is simultaneously stirred until solid is completely dissolved.
Step 2:Carbon cloth is put in the inner liner of reaction kettle of step one, and polytetrafluoroethyllining lining is sealed to stainless steel In mould, be placed under sealing condition in thermostatic drying chamber and 6h is reacted at 120 DEG C.
Step 3:After the completion of reaction, then carbon cloth is taken out by along with the furnace cooling to room temperature, clean, and by washing after carbon cloth Be placed in vacuum drying chamber and 24h be vacuum dried at 40 DEG C, obtain Fe2O3Nano-chip arrays.
Step 4:Step 3 is obtained Fe2O3Nano-chip arrays are placed in tube furnace and add potassium hypophosphite, in argon atmospher In enclosing, 2h is reacted under the conditions of 300 DEG C, obtain FeP nano-chip arrays (Fig. 2).
Step 5:Using two panels FeP nano-chip arrays as hydrazine oxidizing anode and water reduction negative electrode, two electrode systems are built, With the 1.0M KOH containing 0.5M hydrazines as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition, concrete catalytic performance result such as Fig. 2 institutes Show.
Embodiment 3:
Step one:The distilled water of 40mL is added in polytetrafluoroethyllining lining, adds 1mmol zinc nitrates, 2mmol nitric acid Cobalt, 0.074g ammonium fluorides and 0.3g urea, stirring and dissolving form clear solution.
Step 2:Electro-conductive glass piece is put in the inner liner of reaction kettle of step one, and polytetrafluoroethyllining lining is sealed to In stainless steel mould, it is placed under sealing condition in thermostatic drying chamber and heating response 6h at 120 DEG C.
Step 3:After the completion of reaction, sheet glass is taken out, clean, and by washing after sheet glass be placed in vacuum drying chamber In and dry 24h at 40 DEG C, obtain zinc cobalt hydroxide array structure, then in atmosphere 400 DEG C anneal 2 hours, obtain ZnCo2O4Nano-wire array.
Step 4:Step 3 is obtained ZnCo2O4Nano-wire array is placed in tube furnace and adds potassium hypophosphite, in argon gas In atmosphere, 3h is reacted under the conditions of 320 DEG C, obtain ZnCoP nano-wire arrays.
Step 5:Using two panels ZnCoP nano-wire array as glucose oxidizing anode and water reduction negative electrode, two electrodes are built System, with the neutral aqueous solution containing 0.1M glucose as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition.
Embodiment 4:
Step one:The distilled water of 40mL is added in polytetrafluoroethyllining lining, adds 1mmol copper nitrates, 2mmol nitric acid Cobalt, 0.074g ammonium fluorides and 0.3g urea, stirring form clear solution.
Step 2:Titanium sheet is put in the inner liner of reaction kettle of step one, and polytetrafluoroethyllining lining is sealed to stainless steel In mould, it is placed under sealing condition in thermostatic drying chamber and heating response 6h at 120 DEG C.
Step 3:After the completion of reaction, then titanium sheet is taken out, clean, and by washing after titanium sheet be placed in vacuum drying chamber In and be vacuum dried 24h at 40 DEG C, obtain copper cobalt hydroxide array structure, then 400 DEG C of heat treatments are 2 little in atmosphere When, obtain CuCo2O4Nano-wire array.
Step 4:Step 3 is obtained CuCo2O4Nano-wire array array is placed in tube furnace and adds potassium hypophosphite, In argon atmosphere, 2h is reacted under the conditions of 340 DEG C, obtain CuCoP nano-wire arrays.
Step 5:Using two panels CuCoP nano-wire array as amino-acid oxidase anode and water reduction negative electrode, two electrodes are built System, with the 0.5M KOH containing 0.05M amino acid as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition.
Embodiment 5:
Step one:2mmol ammonium persulfates and 40mL NaOH are added in 15mL deionized waters, is put into after mixed dissolution and is washed Net foam copper, reacts 20 minutes under room temperature, obtains Cu (OH) after drying2Nano-wire array presoma.
Step 2:Presoma obtained in step one is placed in ptfe autoclave, 150mL is added dissolved with 0.075M Cobaltous sulfate and the mixed solution of 1.125M urea, 85 DEG C reaction 4h, then in atmosphere 300 DEG C annealing 2h, obtain CuO/Co3O4 Classifying nano linear array.
Step 3:By CuO/Co obtained in step 23O4Classifying nano linear array is placed in tube furnace and adds hypophosphorous acid Potassium, in argon atmosphere, under the conditions of 310 DEG C reacts 2.5h, obtains Cu3P/CoP classifying nano linear arrays.
Step 4:With two panels Cu3P/CoP classifying nanos linear array reduces negative electrode as nucleic acid base oxidizing anode and water, Two electrode systems are built, with the 1.0M KOH containing 0.02M nucleic acid bases as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition.
Embodiment 6:
Step one:The distilled water of 36mL is added in polytetrafluoroethyllining lining, that is, add 1.46g nickel nitrates and 1.41g six Methine tetramine, and stir until solid be completely dissolved, formed clear solution.
Step 2:Titanium net is put in the inner liner of reaction kettle of step one, and polytetrafluoroethyllining lining is sealed to stainless steel In mould, it is placed under sealing condition in thermostatic drying chamber and heating response 10h at 100 DEG C.
Step 3:After the completion of reaction, then titanium net is taken out by along with the furnace cooling to room temperature, successively with distilled water and anhydrous second Alcohol is washed, and by washing after titanium net be placed in vacuum drying chamber and at 40 DEG C be vacuum dried 24h, obtain Ni (OH)2 Nano-chip arrays.
Step 4:By Ni obtained in step 3 (OH)2Nano-chip arrays are placed in tube furnace, with sulphur powder as sulphur source, in argon During atmosphere is enclosed, 4h is reacted under the conditions of 400 DEG C, obtain NiS2Nano-chip arrays.
Step 5:With two panels Ni2P nano-wire arrays build two electrode systems as hydrazine oxidizing anode and water reduction negative electrode, With the 1.0M KOH containing 0.5M hydrazines as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition, its catalytic performance result such as Fig. 3.
Embodiment 7:
Step one:The distilled water of 40mL is added in polytetrafluoroethyllining lining, adds 1mmol manganese nitrates, 2mmol nitric acid Cobalt, 0.074g ammonium fluorides and 0.3g urea, stirring and dissolving form clear solution.
Step 2:Carbon paper is put in the inner liner of reaction kettle of step one, and polytetrafluoroethyllining lining is sealed to stainless steel In mould, it is placed under sealing condition in thermostatic drying chamber and heating response 6h at 120 DEG C.
Step 3:After the completion of reaction, carbon paper is taken out, clean, and by washing after titanium sheet be placed in vacuum drying chamber simultaneously Dry 24h at 40 DEG C, then in atmosphere 400 DEG C anneal 2 hours, obtain MnCo2O4Nano-wire array.
Step 4:By MnCo obtained in step 32O4Nano-wire array array is placed in tube furnace, with selenium powder as selenium source, In argon atmosphere, 2h is reacted under the conditions of 450 DEG C, obtain MnCo2Se4Nano-wire array.
Step 5:With two panels MnCo2Se4Nano-wire array builds two electricity as tannic acid oxidizing anode and water reduction negative electrode Electrode systems, with the 0.5M KOH containing 0.1M tannic acid as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition.
Embodiment 8:
Step one:The distilled water of 40mL is added in polytetrafluoroethyllining lining, adds 1mmol nickel nitrates, 2mmol nitric acid Cobalt, 0.074g ammonium fluorides and 0.3g urea, stirring and dissolving form clear solution.
Step 2:Copper sheet is put in the inner liner of reaction kettle of step one, and polytetrafluoroethyllining lining is sealed to stainless steel In mould, it is placed under sealing condition in thermostatic drying chamber and heating response 8h at 150 DEG C.
Step 3:After the completion of reaction, copper sheet is taken out, clean, and by washing after titanium sheet be placed in vacuum drying chamber simultaneously Dry 12h at 60 DEG C, then in atmosphere 450 DEG C anneal 1 hour, obtain NiCo2O4Nano-wire array.
Step 4:By NiCo obtained in step 32O4Nano-wire array array is placed in tube furnace, with selenium powder as selenium source, In argon atmosphere, 3h is reacted under the conditions of 450 DEG C, obtain NiCo2Se4Nano-wire array.
Step 5:With two panels NiCo2Se4Nano-wire array is built as plant extracts oxidizing anode and water reduction negative electrode Two electrode systems, with the 0.5M KOH containing plant extraction liquid as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition.
Embodiment 9:
Step one:The distilled water of 35mL is added in polytetrafluoroethyllining lining, controls to add 0.87g nitre in every milliliter of water Sour cobalt, 0.11g ammonium fluorides and 0.18g urea, stirring and dissolving form clear solution.
Step 2:Stainless (steel) wire is put in the inner liner of reaction kettle of step one, and polytetrafluoroethyllining lining is sealed to not In rust steel mold, it is placed under sealing condition in thermostatic drying chamber and heating response 12h at 120 DEG C.
Step 3:After the completion of reaction, stainless (steel) wire is taken out, clean, and by washing after silicon chip be placed in vacuum drying chamber In and at 40 DEG C be vacuum dried 24h, obtain Co (OH) F nanowire array structures.
Step 4:Presoma obtained in step 3 is placed in tube furnace, nitrogen source is enclosed with ammonia, in argon atmosphere, 3h is reacted under the conditions of 400 DEG C, obtain Co4N nano-wire arrays.
Step 5:With two panels Co4N nano-wire arrays build two electrode systems as urea oxidizing anode and water reduction negative electrode System, with the 1.0M KOH containing 0.55M urea as electrolyte, electrochemistry hydrogen manufacturing under normal temperature condition, concrete catalytic performance result is such as Shown in Fig. 4.

Claims (9)

1. transition metal nano-array reduces double-function catalyzing electrode in low energy consumption electrochemistry as small molecule electroxidation and water power Application in hydrogen manufacturing, the catalysis electrode are made up of transition metal nano-array and conductive carrier two parts.
2. application according to claim 1, it is characterised in that transition metal nano-array electrode is placed in electrolyte, Realize High-efficient Water electrolytic hydrogen production.
3. application according to claim 2, it is characterised in that the electrolyte is alkalescence, the neutral or weakly acidic pH aqueous solution.
4. application according to claim 1, it is characterised in that the transition metal nano-array content be 0.1~ 50wt%, carrier are one or more mischmetal knot of iron, nickel, vanadium, copper, stainless steel, cobalt, titanium, molybdenum, tungsten, aluminium, zinc, chromium, manganese Structure (net/paper tinsel/piece), carbon fiber, carbon cloth, carbon fiber paper, electro-conductive glass piece and conductive silicon chip.
5. application according to claim 1, it is characterised in that the transition metal nano-array contains one or more mistake Metallic element is crossed, the transition metal is iron, cobalt, nickel, copper, molybdenum, tungsten, vanadium, titanium, zinc, aluminium, chromium, manganese, gallium, indium, germanium, tin.
6. application according to claim 1, it is characterised in that the transition metal nano-array includes transition metal phosphatization Thing, transient metal sulfide, transition metal selenides, transition metal nitride.
7. application according to claim 1, it is characterised in that the transition metal nano-array is by corresponding transition metal Simple substance (alloy), oxide or hydroxide nano array presoma pass through under atmosphere of inert gases, in phosphorus source, sulphur source, selenium Source, nitrogen source are annealed under conditions of existing and are obtained, and presoma can pass through hydro-thermal reaction, electro-deposition, chemical bath deposition in conductive load On body prepared by growth in situ.
8. application according to claim 7, it is characterised in that the inert gas is that argon gas or nitrogen, annealing temperature are 250~900 DEG C, annealing time is 1~8 hour, and phosphorus source is in sodium hypophosphite, potassium hypophosphite, hypophosphorous acid, red phosphorus or white phosphorus Plant or multiple;Sulphur source is sulphur powder;Selenium source is selenium powder.
9. application according to claim 1, it is characterised in that the small molecule includes the organic molecule with reproducibility (sugar, alcohol, aldehyde, amine, amino acid, vitamin, tannic acid, nucleic acid base, plant extracts etc.) and inorganic molecules (urea, sulphur Urea, uric acid, hydrazine, boron hydride, sulfide, iodide etc.) in one or more.
CN201610952265.0A 2016-11-03 2016-11-03 Low energy consumption electrochemistry hydrogen generating system based on dual-functional nanometer array electrode Pending CN106498430A (en)

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CN107313065A (en) * 2017-07-14 2017-11-03 西南大学 Iron phosphide modified alpha type iron oxide vermiform nano-structure array light anode and its preparation method and application
CN107475737A (en) * 2017-07-17 2017-12-15 中国科学院合肥物质科学研究院 A kind of metal-doped NiSe2Nanometer sheet and preparation method and application
CN107587161A (en) * 2017-08-11 2018-01-16 济南大学 A kind of preparation method of bar-shaped NiFeSe/C electrolysis waters catalyst
CN107999114A (en) * 2017-12-19 2018-05-08 成都玖奇新材料科技有限公司 Electrochemical reduction nitrogen ammonia non-precious metal catalyst
CN108315759A (en) * 2018-03-15 2018-07-24 陕西科技大学 A kind of Cu of vanadium modification2S self-supportings electrode material and its synthetic method
CN108364792A (en) * 2018-01-24 2018-08-03 复旦大学 A kind of preparation method and applications of nickel cobalt selenium hollow ball-shape multilevel structure material
CN108355699A (en) * 2018-03-01 2018-08-03 中国科学院理化技术研究所 A kind of carbon load nickel copper binary nitride catalyst and its preparation method and application
CN108636428A (en) * 2018-03-13 2018-10-12 北京化工大学 A kind of preparation method of metal telluride as two-functional electrolytic catalyst
CN108654666A (en) * 2018-04-19 2018-10-16 南京师范大学 The preparation method and resulting materials of the three-dimensional Co nano flowers of a kind of N, P- codope and application
CN108671923A (en) * 2018-05-10 2018-10-19 宁波大学 Cu oxide/cobalt/cobalt oxide catalyst with core-casing structure and preparation method thereof for electrolysis water
CN109055976A (en) * 2018-08-03 2018-12-21 北京化工大学 A kind of multilevel structure transition metal nitride electrode material and preparation method thereof
CN109675639A (en) * 2019-02-12 2019-04-26 济南大学 A kind of preparation method and application of Ni-MOF/NiF bifunctional catalyst that is while preparing hydrogen and glucaric acid
CN110102325A (en) * 2018-12-26 2019-08-09 武汉理工大学 Porous nano chip architecture cupro-nickel nitride material and its preparation method and application
CN110721711A (en) * 2019-10-11 2020-01-24 力行氢能科技股份有限公司 Phosphide/selenide electrolyzed water hydrogen production catalyst and preparation method thereof
CN110743603A (en) * 2019-11-21 2020-02-04 江苏索普(集团)有限公司 Cobalt-iron bimetallic nitride composite electrocatalyst and preparation method and application thereof
CN110846679A (en) * 2018-08-20 2020-02-28 南京理工大学 Preparation method of flower-ball-shaped cobalt-aluminum sulfide
CN111185188A (en) * 2019-12-27 2020-05-22 江南大学 Iron-cobalt-nickel-copper-based high-entropy alloy electrolytic water catalytic material and preparation method thereof
CN112909271A (en) * 2021-01-25 2021-06-04 华南理工大学 Integral transition metal phosphide electrocatalyst with sea urchin-shaped morphology and preparation method and application thereof
CN112974831A (en) * 2021-03-05 2021-06-18 西北有色金属研究院 Cu-Cu with nano array structure3Preparation method of P material
WO2021128282A1 (en) * 2019-12-27 2021-07-01 江南大学 Iron-cobalt-nickel-copper-based high-entropy alloy water electrolysis catalytic material and preparation method therefor
US11123717B2 (en) 2019-05-30 2021-09-21 Korea University Research And Business Foundation Catalyst for oxygen reduction reaction and oxygen evolution reaction and method for manufacturing of the same
US11376570B1 (en) 2021-07-21 2022-07-05 King Abdulaziz University Method of forming copper oxide-on-copper nanomaterial catalyst mesh
CN114807956A (en) * 2022-04-11 2022-07-29 西南石油大学 Preparation method of in-situ growth nano array catalyst applied to hydrogen sulfide hydrogen production
CN115142070A (en) * 2022-06-28 2022-10-04 成都翎阳科技有限公司 Method for hydrogen production by water electrolysis and selective small molecule conversion
CN115323396A (en) * 2022-08-31 2022-11-11 国科绿氢(湖州)科技有限公司 Double-functional active electrode for hydrogen production by water electrolysis
WO2024098957A1 (en) * 2022-11-10 2024-05-16 东江环保股份有限公司 Preparation method and use of nano copper phosphide

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CN107313065B (en) * 2017-07-14 2019-01-04 西南大学 Iron phosphide modified alpha type iron oxide vermiform nano-structure array light anode and its preparation method and application
CN107313065A (en) * 2017-07-14 2017-11-03 西南大学 Iron phosphide modified alpha type iron oxide vermiform nano-structure array light anode and its preparation method and application
CN107475737A (en) * 2017-07-17 2017-12-15 中国科学院合肥物质科学研究院 A kind of metal-doped NiSe2Nanometer sheet and preparation method and application
CN107587161A (en) * 2017-08-11 2018-01-16 济南大学 A kind of preparation method of bar-shaped NiFeSe/C electrolysis waters catalyst
CN107999114A (en) * 2017-12-19 2018-05-08 成都玖奇新材料科技有限公司 Electrochemical reduction nitrogen ammonia non-precious metal catalyst
CN108364792B (en) * 2018-01-24 2020-04-24 复旦大学 Preparation method and application of nickel-cobalt-selenium hollow spherical multilevel structure material
CN108364792A (en) * 2018-01-24 2018-08-03 复旦大学 A kind of preparation method and applications of nickel cobalt selenium hollow ball-shape multilevel structure material
CN108355699A (en) * 2018-03-01 2018-08-03 中国科学院理化技术研究所 A kind of carbon load nickel copper binary nitride catalyst and its preparation method and application
CN108636428A (en) * 2018-03-13 2018-10-12 北京化工大学 A kind of preparation method of metal telluride as two-functional electrolytic catalyst
CN108315759A (en) * 2018-03-15 2018-07-24 陕西科技大学 A kind of Cu of vanadium modification2S self-supportings electrode material and its synthetic method
CN108654666A (en) * 2018-04-19 2018-10-16 南京师范大学 The preparation method and resulting materials of the three-dimensional Co nano flowers of a kind of N, P- codope and application
CN108671923A (en) * 2018-05-10 2018-10-19 宁波大学 Cu oxide/cobalt/cobalt oxide catalyst with core-casing structure and preparation method thereof for electrolysis water
CN108671923B (en) * 2018-05-10 2021-06-29 宁波大学 Copper oxide/cobalt oxide core-shell structure catalyst for water electrolysis and preparation method thereof
CN109055976A (en) * 2018-08-03 2018-12-21 北京化工大学 A kind of multilevel structure transition metal nitride electrode material and preparation method thereof
CN110846679A (en) * 2018-08-20 2020-02-28 南京理工大学 Preparation method of flower-ball-shaped cobalt-aluminum sulfide
CN110102325A (en) * 2018-12-26 2019-08-09 武汉理工大学 Porous nano chip architecture cupro-nickel nitride material and its preparation method and application
CN110102325B (en) * 2018-12-26 2022-03-25 武汉理工大学 Porous copper-nickel nitride material with nanosheet structure and preparation method and application thereof
CN109675639A (en) * 2019-02-12 2019-04-26 济南大学 A kind of preparation method and application of Ni-MOF/NiF bifunctional catalyst that is while preparing hydrogen and glucaric acid
CN109675639B (en) * 2019-02-12 2021-07-30 济南大学 Preparation method and application of Ni-MOF/NiF bifunctional catalyst for simultaneously preparing hydrogen and glucaric acid
US11123717B2 (en) 2019-05-30 2021-09-21 Korea University Research And Business Foundation Catalyst for oxygen reduction reaction and oxygen evolution reaction and method for manufacturing of the same
CN110721711A (en) * 2019-10-11 2020-01-24 力行氢能科技股份有限公司 Phosphide/selenide electrolyzed water hydrogen production catalyst and preparation method thereof
CN110743603B (en) * 2019-11-21 2022-06-10 江苏索普(集团)有限公司 Cobalt-iron bimetal nitride composite electrocatalyst and preparation method and application thereof
CN110743603A (en) * 2019-11-21 2020-02-04 江苏索普(集团)有限公司 Cobalt-iron bimetallic nitride composite electrocatalyst and preparation method and application thereof
CN111185188A (en) * 2019-12-27 2020-05-22 江南大学 Iron-cobalt-nickel-copper-based high-entropy alloy electrolytic water catalytic material and preparation method thereof
CN111185188B (en) * 2019-12-27 2021-06-25 江南大学 Iron-cobalt-nickel-copper-based high-entropy alloy electrolytic water catalytic material and preparation method thereof
WO2021128282A1 (en) * 2019-12-27 2021-07-01 江南大学 Iron-cobalt-nickel-copper-based high-entropy alloy water electrolysis catalytic material and preparation method therefor
CN112909271A (en) * 2021-01-25 2021-06-04 华南理工大学 Integral transition metal phosphide electrocatalyst with sea urchin-shaped morphology and preparation method and application thereof
CN112974831A (en) * 2021-03-05 2021-06-18 西北有色金属研究院 Cu-Cu with nano array structure3Preparation method of P material
CN112974831B (en) * 2021-03-05 2022-04-19 西北有色金属研究院 Cu-Cu with nano array structure3Preparation method of P material
US11376570B1 (en) 2021-07-21 2022-07-05 King Abdulaziz University Method of forming copper oxide-on-copper nanomaterial catalyst mesh
CN114807956A (en) * 2022-04-11 2022-07-29 西南石油大学 Preparation method of in-situ growth nano array catalyst applied to hydrogen sulfide hydrogen production
CN114807956B (en) * 2022-04-11 2024-05-17 西南石油大学 Preparation method of in-situ growth nano-array catalyst applied to hydrogen sulfide hydrogen production
CN115142070A (en) * 2022-06-28 2022-10-04 成都翎阳科技有限公司 Method for hydrogen production by water electrolysis and selective small molecule conversion
CN115323396A (en) * 2022-08-31 2022-11-11 国科绿氢(湖州)科技有限公司 Double-functional active electrode for hydrogen production by water electrolysis
WO2024098957A1 (en) * 2022-11-10 2024-05-16 东江环保股份有限公司 Preparation method and use of nano copper phosphide

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