CN106591926A - Method for preparing CNTs-porous nickel/nickel oxide hydrogen evolution reaction catalyst on surface of steel - Google Patents

Method for preparing CNTs-porous nickel/nickel oxide hydrogen evolution reaction catalyst on surface of steel Download PDF

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CN106591926A
CN106591926A CN201611128354.XA CN201611128354A CN106591926A CN 106591926 A CN106591926 A CN 106591926A CN 201611128354 A CN201611128354 A CN 201611128354A CN 106591926 A CN106591926 A CN 106591926A
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nickel
steel
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CN106591926B (en
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田栋
刘赛赛
郑瑶瑶
黄太仲
夏方诠
周长利
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University of Jinan
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D15/00Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/02Hydrogen or oxygen
    • C25B1/04Hydrogen or oxygen by electrolysis of water
    • 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
    • C25B11/02Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
    • C25B11/031Porous electrodes
    • 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
    • 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

Abstract

The invention discloses a method for preparing a CNTs-porous nickel/nickel oxide hydrogen evolution reaction catalyst on a surface of steel. The invention aims to solve the problem that the performance of a non-noble metal hydrogen evolution reaction catalyst in an alkaline solution at present is poor. The method for preparing the CNTs-porous nickel/nickel oxide hydrogen evolution reaction catalyst on the surface of steel comprises the following steps: (1) preparing a nickel-copper alloy-CNTs composite electroplating solution; (2) preparing a copper leaching solution; (3) performing pre-treatment on the steel; (4) preparing a CNTs-nickel-copper alloy on the surface of the steel; (5) preparing CNTs-porous nickel on the surface of the steel; (6) preparing CNTs-porous nickel/nickel oxide on the surface of the steel, and preparing a CNTs-porous nickel/nickel oxide composite catalyst layer with good hydrogen evolution reaction catalytic activity on the surface of the steel, wherein the CNTs-porous nickel/nickel oxide composite catalyst layer is beneficial to improving the performance of a non-noble metal catalyst for an electrolysis hydrogen evolution reaction.

Description

In the method that steel surface prepares CNTs- porous nickel nickel evolving hydrogen reaction catalyst
Technical field
The invention belongs to the preparation field of evolving hydrogen reaction catalyst, is related to one kind and prepares for alkaline solution in steel surface The method of the CNTs- porous nickel nickel evolving hydrogen reaction catalyst of electrolysis liberation of hydrogen.
Background technology
Electrolysis water prepares the important means that high-purity hydrogen is industrial hydrogen production, wherein the electrolytic hydrogen production research in alkaline solution More ripe, application is also more extensive.The principle of electrolytic hydrogen production is exactly using sodium hydroxide as conducting salt, alkali in alkaline solution Property solution in hydrone generate hydrogen atom and hydroxyl in cathodic reduction, hydroxyl is aoxidized in anode, generation hydrone And oxygen atom, continue to be combined with each other in the hydrogen atom of cathodic reduction generation, finally discharged in the form of hydrogen.Cause This, during electrolytic hydrogen production, the selection of cathode hydrogen evolution catalysts is most important, can not only affect hydrone also primary Into hydrogen atom and reaction activity hydroxy, and may decide that hydrogen atom be combined with each other separate out hydrogen kinetic parameter. Good cathode hydrogen evolution catalysts can reduce hydrone reduction and generate hydrogen atom and reaction activity hydroxy, also It is the electrochemical reversibility for improving electric charge transfer step, reduces the activation polarization of liberation of hydrogen process.Just because of this, select suitable Cathode hydrogen evolution catalysts can improve the efficiency of the conversion of energy in electrolytic hydrogen production process, it is to avoid electric energy is converted to heat energy and releases Run out, so as to reduce the energy consumption of liberation of hydrogen process.
However, maximally efficient, reliable material is noble metal platinum in current evolving hydrogen reaction catalyst, although it can drop The activation energy of low electrolysis liberation of hydrogen is so as to save the cost of electric energy, but the price of high enterprise causes the powerless purchase of manufacturing enterprise again.Therefore, select The liberation of hydrogen catalyst for advantageously reducing liberation of hydrogen process activation polarization is selected so as to reducing energy consumption, with selection liberation of hydrogen process electrochemistry pole Changing non-precious metal catalyst that is bigger but can reducing catalyst input cost becomes the choice that electrolytic hydrogen production field must face.Cause This, if preparing, overpotential of hydrogen evolution is low, and the also very low base metal evolving hydrogen reaction catalyst of catalyst input cost, will The technical barrier that electrolytic hydrogen production can be overcome to avoid.
In numerous base metal evolving hydrogen reaction catalyst, nickel has preferable catalysis activity, at the same it is moderate, therefore Especially favored by electrolytic hydrogen production field.However, its catalysis activity can not still meet requirement, overpotential of hydrogen evolution and noble metal platinum Compare and yet suffer from larger gap.Therefore, current many scientific research institutions are all to the nickel catalyst material as electrolytic hydrogen production field Keen interest is generated, in terms of the preparation of nickel-based metallic material is modified many work have been done.If can from geometrical factor with And the aspect of capacity factor two is modified to nickel-base catalyst simultaneously if, prepare that catalysis area is big, electrolysis liberation of hydrogen activation energy Low new nickel-base catalyst, the preparation field and electrolytic hydrogen production field to evolving hydrogen reaction catalyst will all produce far-reaching shadow Ring.
The content of the invention
The present invention is to solve the base metal evolving hydrogen reaction catalyst liberation of hydrogen for being electrolysed liberation of hydrogen currently used for alkaline solution is lived Change can the relatively low problem of higher, energy conversion efficiency, and a kind of preparation in steel surface is provided and is electrolysed liberation of hydrogen for alkaline solution CNTs- porous nickel nickel evolving hydrogen reaction catalyst method.
The present invention's prepares the method for CNTs- porous nickel nickel evolving hydrogen reaction catalyst according to following in steel surface Step is carried out:
(1) preparation of monel-CNTs composite platings solution:A. the cetyl trimethyl bromination of 0.1 ~ 2.0 g is weighed Ammonium, in being added to 800 mL deionized waters, after 20 min are stirred at room temperature, adds the CNT of 0.2 ~ 1.0 g;b. Stir at 25 DEG C and 1.5 h are processed using ultrasonic cell disruptor after 0.5 h;C. repeat step b 1 ~ 5 time;D. press According to ammonium citrate concentration be 35 ~ 65 g/L, sodium potassium tartrate tetrahydrate concentration be 5 ~ 30 g/L, nickel sulfate concentration be 8 ~ 50 g/ L, the concentration of copper sulfate are the ratio of 2 ~ 25 g/L, and ammonium citrate, sodium potassium tartrate tetrahydrate, nickel sulfate and copper sulfate are sequentially added into step Solution after rapid c process, adjustment pH is 7.5 ~ 8.5, completes the preparation of monel-CNTs composite plating solution;
(2) preparation of copper leachate:E. by the thiourea of the sulphuric acid of 10 ~ 100 mL and 10 ~ 120 g at a temperature of 40 ~ 70 DEG C In being dissolved in 700mL deionized waters, 1 L is settled to, completes the preparation of copper leachate;
(3) iron and steel pre-treatment:F. iron and steel is immersed into the min of supersound process 2 ~ 5 in acetone, it is 35 ~ 40 that temperature is immersed after washing DEG C, concentration expressed in percentage by volume for 5 ~ 8% hydrochloric acid solution in the min of etch 1 ~ 3, iron and steel pre-treatment is completed after washing;
(4) CNTs- monels are prepared in steel surface:G. by iron and steel immersion step (1) after step (3) process As negative electrode in the monel-CNTs composite plating solution of preparation, graphite cake, as anode, is 0.5 ~ 5.0 in electric current density A/dm2And apply min ~ 3 h of electro-deposition 10 under conditions of stirring, afterwards through one tap water cleaning, three road deionizations Complete to prepare CNTs- monels in steel surface after water cleaning;
(5) CNTs- nickel porous are prepared in steel surface:H. iron and steel/CNTs- monel the composite woods for being prepared by step (4) 2 ~ 12 h in the copper leachate that material immersion step (2) is prepared, temperature is 40 ~ 70 DEG C, afterwards through the cleaning of one tap water, three Complete to prepare CNTs- nickel porous in steel surface after road deionized water cleaning;
(6) CNTs- porous nickel nickels are prepared in steel surface:I. iron and steel/CNTs- the nickel porous for being prepared by step (5) are answered Condensation material is put into 0.25 ~ 12 h of immersion in 30% hydrogen peroxide, and temperature is 40 ~ 60 DEG C, then through one tap water cleaning, three roads Cold wind is dried up after deionized water cleaning, and the h of heat treatment 0.5 ~ 3 at 100 DEG C completes steel surface CNTs- porous nickel nickels The preparation of evolving hydrogen reaction catalyst.
The present invention's prepares the method for CNTs- porous nickel nickel evolving hydrogen reaction catalyst by steel in steel surface Iron surface prepares CNTs- monel composite deposites, and monel can be made to be grown in CNT extension, not only increases multiple The electric conductivity of condensation material, and increased real table area;And then caused for CNTs- nickel porous by the copper in dissolution alloy Real table area is further dramatically increased, and the catalysis activity of catalyst is improve in geometrical factor;Finally by nickel surface Nickel oxide is obtained, the liberation of hydrogen activation energy of material is reduced again, in capacity factor angle the catalytic activity for hydrogen evolution of catalyst is improved. Therefore, preparing CNTs- porous nickel nickel evolving hydrogen reaction catalyst in steel surface can significantly reduce evolving hydrogen reaction activation Can, reduce the energy expenditure that liberation of hydrogen is electrolysed in alkaline solution.
Description of the drawings
Fig. 1 is the SEM image for testing a CNTs- nickel porous/nickel oxide composite material prepared in steel surface;
Fig. 2 be test one prepare iron and steel/CNTs- porous nickel nickel evolving hydrogen reaction catalyst in 1.0 M NaOH solutions, Cathode-current density is 200 mA/cm2Under conditions of time-potential curve for measuring.
Specific embodiment
Specific embodiment one:Present embodiment steel surface prepare CNTs- porous nickel nickel evolving hydrogen reactions urge The method of agent is carried out according to the following steps:
(1) preparation of monel-CNTs composite platings solution:A. the cetyl trimethyl bromination of 0.1 ~ 2.0 g is weighed Ammonium, in being added to 800 mL deionized waters, after 20 min are stirred at room temperature, adds the CNT of 0.2 ~ 1.0 g;b. Stir at 25 DEG C and 1.5 h are processed using ultrasonic cell disruptor after 0.5 h;C. repeat step b 1 ~ 5 time;D. press According to ammonium citrate concentration be 35 ~ 65 g/L, sodium potassium tartrate tetrahydrate concentration be 5 ~ 30 g/L, nickel sulfate concentration be 8 ~ 50 g/ L, the concentration of copper sulfate are the ratio of 2 ~ 25 g/L, and ammonium citrate, sodium potassium tartrate tetrahydrate, nickel sulfate and copper sulfate are sequentially added into step Solution after rapid c process, adjustment pH is 7.5 ~ 8.5, completes the preparation of monel-CNTs composite plating solution;
(2) preparation of copper leachate:E. by the thiourea of the sulphuric acid of 10 ~ 100 mL and 10 ~ 120 g at a temperature of 40 ~ 70 DEG C In being dissolved in 700mL deionized waters, 1 L is settled to, completes the preparation of copper leachate;
(3) iron and steel pre-treatment:F. iron and steel is immersed into the min of supersound process 2 ~ 5 in acetone, it is 35 ~ 40 that temperature is immersed after washing DEG C, concentration expressed in percentage by volume for 5 ~ 8% hydrochloric acid solution in the min of etch 1 ~ 3, iron and steel pre-treatment is completed after washing;
(4) CNTs- monels are prepared in steel surface:G. by iron and steel immersion step (1) after step (3) process As negative electrode in the monel-CNTs composite plating solution of preparation, graphite cake, as anode, is 0.5 ~ 5.0 in electric current density A/dm2And apply min ~ 3 h of electro-deposition 10 under conditions of stirring, afterwards through one tap water cleaning, three road deionizations Complete to prepare CNTs- monels in steel surface after water cleaning;
(5) CNTs- nickel porous are prepared in steel surface:H. iron and steel/CNTs- monel the composite woods for being prepared by step (4) 2 ~ 12 h in the copper leachate that material immersion step (2) is prepared, temperature is 40 ~ 70 DEG C, afterwards through the cleaning of one tap water, three Complete to prepare CNTs- nickel porous in steel surface after road deionized water cleaning;
(6) CNTs- porous nickel nickels are prepared in steel surface:I. iron and steel/CNTs- the nickel porous for being prepared by step (5) are answered Condensation material is put into 0.25 ~ 12 h of immersion in 30% hydrogen peroxide, and temperature is 40 ~ 60 DEG C, then through one tap water cleaning, three roads Cold wind is dried up after deionized water cleaning, and the h of heat treatment 0.5 ~ 3 at 100 DEG C completes steel surface CNTs- porous nickel nickels The preparation of evolving hydrogen reaction catalyst.
The method for preparing CNTs- porous nickel nickel evolving hydrogen reaction catalyst in steel surface of present embodiment passes through CNTs- monel composite deposites are prepared in steel surface, monel can be made to be grown in CNT extension, not only increased The electric conductivity of composite, and increased real table area;And then by the copper in dissolution alloy for CNTs- nickel porous So that real table area is further dramatically increased, the catalysis activity of catalyst is improve in geometrical factor;Finally by nickel Surface obtains nickel oxide, and the liberation of hydrogen activation energy of material is reduced again, and in capacity factor angle the liberation of hydrogen catalysis of catalyst is improved Activity.Therefore, present embodiment can be shown by preparing CNTs- porous nickel nickel evolving hydrogen reaction catalyst in steel surface Writing reduces evolving hydrogen reaction activation energy, reduces the energy expenditure that liberation of hydrogen is electrolysed in alkaline solution.
Specific embodiment two:Present embodiment and the sulfur unlike specific embodiment one described in the d of step (1) The concentration of sour nickel is 12 ~ 40 g/L, and the concentration of described copper sulfate is 3 ~ 20 g/L.Other are identical with specific embodiment one.
Specific embodiment three:Present embodiment is sunk from the electricity in step unlike specific embodiment one or two (4) The product time is 20 min ~ 2 h.Other are identical with specific embodiment one or two.
Specific embodiment four:Will in step (6) unlike one of present embodiment and specific embodiment one to three The time that iron and steel/CNTs- porous nickel composite material soaks in 30% hydrogen peroxide is 0.5 ~ 10 h.Other and specific embodiment One of one to three is identical.
With following verification experimental verification beneficial effects of the present invention:
Test one:This test in steel surface prepares the method for CNTs- porous nickel nickel evolving hydrogen reaction catalyst by following Step is carried out:
(1) preparation of monel-CNTs composite platings solution:A. the cetyl trimethylammonium bromide of 0.8 g is weighed, plus Enter in 800 mL deionized waters, after 20 min are stirred at room temperature, add the CNT of 0.6 g;B. at 25 DEG C Stir and 1.5 h are processed using ultrasonic cell disruptor after 0.5 h;C. repeat step b 5 times;D. according to ammonium citrate Concentration be 45 g/L, the concentration of sodium potassium tartrate tetrahydrate be 25 g/L, the concentration of nickel sulfate be 12 g/L, the concentration of copper sulfate be 17 The ratio of g/L, by ammonium citrate, sodium potassium tartrate tetrahydrate, nickel sulfate and copper sulfate the solution after step c is processed is sequentially added, and is adjusted Whole pH is 7.5, completes the preparation of monel-CNTs composite plating solution;
(2) preparation of copper leachate:E. the thiourea of the sulphuric acid of 80 mL and 100 g is dissolved in into 700mL at a temperature of 60 DEG C In deionized water, 1 L is settled to, completes the preparation of copper leachate;
(3) iron and steel pre-treatment:F. iron and steel is immersed into the min of supersound process 4 in acetone, it is 35 DEG C, body that temperature is immersed after washing The min of etch 3 in the hydrochloric acid solution that percentage concentration is 5% is accumulated, iron and steel pre-treatment is completed after washing;
(4) CNTs- monels are prepared in steel surface:G. by iron and steel immersion step (1) after step (3) process As negative electrode in the monel-CNTs composite plating solution of preparation, graphite cake, as anode, is 2.0 A/ in electric current density dm2And apply the min of electro-deposition 30 under conditions of stirring, afterwards after one tap water cleaning, three road deionized water cleanings Complete to prepare CNTs- monels in steel surface;
(5) CNTs- nickel porous are prepared in steel surface:H. iron and steel/CNTs- monel the composite woods for being prepared by step (4) 6 h in the copper leachate that material immersion step (2) is prepared, temperature is 50 DEG C, afterwards through the cleaning of one tap water, three roads go from Complete to prepare CNTs- nickel porous in steel surface after sub- water cleaning;
(6) CNTs- porous nickel nickels are prepared in steel surface:I. iron and steel/CNTs- the nickel porous for being prepared by step (5) are answered Condensation material is put in 30% hydrogen peroxide and soaks 1 h, and temperature is 50 DEG C, then through one tap water cleaning, three road deionized waters Cold wind is dried up after cleaning, the h of heat treatment 1 at 100 DEG C, completes the catalysis of steel surface CNTs- porous nickel nickels evolving hydrogen reaction The preparation of agent.
The SEM image of CNTs- nickel porous/nickel oxide composite material that this test is prepared in steel surface is as shown in Figure 1.From Fig. 1 understands that monel is co-deposited with CNTs in steel surface, and the growth pattern for obtaining composite deposite is metal in the outer of CNTs Epitaxial growth, porous nickel skeleton is attached to CNTs extensions after copper is leached, and generates after subsequent heat treatment oxidation and has very high ratio CNTs- nickel porous/the nickel oxide composite material of surface area.
This test prepare iron and steel/CNTs- porous nickel nickel evolving hydrogen reaction catalyst in 1.0 M NaOH solutions, Cathode-current density is 200 mA/cm2Under conditions of time-potential curve for measuring it is as shown in Figure 2.As can be seen from Figure 2, this examination Iron and steel/overpotential of hydrogen evolution of the CNTs- porous nickel nickel evolving hydrogen reaction catalyst in 1.0 M NaOH solutions for testing preparation is steady It is scheduled on 180 mV or so(Iron and steel is in 200 mA/cm2Overpotential of hydrogen evolution under electric current density>570 mV), with good catalysis Activity.
Iron and steel/CNTs- porous nickel nickel evolving hydrogen reaction catalyst prepared by this test is little in continuous electrolysis hydrogen manufacturing 960 When after, catalyst structure is well not corrupted, and overpotential of hydrogen evolution illustrates to be prepared using the method still within 190 mV Evolving hydrogen reaction catalyst performance stabilised.

Claims (4)

1. the method for preparing CNTs- porous nickel nickel evolving hydrogen reaction catalyst in steel surface, it is characterised in that in iron and steel table Face prepares the method for CNTs- porous nickel nickel evolving hydrogen reaction catalyst and carries out according to the following steps:
(1) preparation of monel-CNTs composite platings solution:A. the cetyl trimethyl bromination of 0.1 ~ 2.0 g is weighed Ammonium, in being added to 800 mL deionized waters, after 20 min are stirred at room temperature, adds the CNT of 0.2 ~ 1.0 g;b. Stir at 25 DEG C and 1.5 h are processed using ultrasonic cell disruptor after 0.5 h;C. repeat step b 1 ~ 5 time;D. press According to ammonium citrate concentration be 35 ~ 65 g/L, sodium potassium tartrate tetrahydrate concentration be 5 ~ 30 g/L, nickel sulfate concentration be 8 ~ 50 g/ L, the concentration of copper sulfate are the ratio of 2 ~ 25 g/L, and ammonium citrate, sodium potassium tartrate tetrahydrate, nickel sulfate and copper sulfate are sequentially added into step Solution after rapid c process, adjustment pH is 7.5 ~ 8.5, completes the preparation of monel-CNTs composite plating solution;
(2) preparation of copper leachate:E. by the thiourea of the sulphuric acid of 10 ~ 100 mL and 10 ~ 120 g at a temperature of 40 ~ 70 DEG C In being dissolved in 700mL deionized waters, 1 L is settled to, completes the preparation of copper leachate;
(3) iron and steel pre-treatment:F. iron and steel is immersed into the min of supersound process 2 ~ 5 in acetone, it is 35 ~ 40 that temperature is immersed after washing DEG C, concentration expressed in percentage by volume for 5 ~ 8% hydrochloric acid solution in the min of etch 1 ~ 3, iron and steel pre-treatment is completed after washing;
(4) CNTs- monels are prepared in steel surface:G. by iron and steel immersion step (1) after step (3) process As negative electrode in the monel-CNTs composite plating solution of preparation, graphite cake, as anode, is 0.5 ~ 5.0 in electric current density A/dm2And apply min ~ 3 h of electro-deposition 10 under conditions of stirring, afterwards through one tap water cleaning, three road deionizations Complete to prepare CNTs- monels in steel surface after water cleaning;
(5) CNTs- nickel porous are prepared in steel surface:H. iron and steel/CNTs- monel the composite woods for being prepared by step (4) 2 ~ 12 h in the copper leachate that material immersion step (2) is prepared, temperature is 40 ~ 70 DEG C, afterwards through the cleaning of one tap water, three Complete to prepare CNTs- nickel porous in steel surface after road deionized water cleaning;
(6) CNTs- porous nickel nickels are prepared in steel surface:I. iron and steel/CNTs- the nickel porous for being prepared by step (5) are answered Condensation material is put into 0.25 ~ 12 h of immersion in 30% hydrogen peroxide, and temperature is 40 ~ 60 DEG C, then through one tap water cleaning, three roads Cold wind is dried up after deionized water cleaning, and the h of heat treatment 0.5 ~ 3 at 100 DEG C completes steel surface CNTs- porous nickel nickels The preparation of evolving hydrogen reaction catalyst.
2. the side that CNTs- porous nickel nickel evolving hydrogen reaction catalyst is prepared in steel surface according to claim 1 Method, it is characterised in that the concentration of the nickel sulfate described in the d of step (1) is 12 ~ 40 g/L, the concentration of described copper sulfate is 3 ~ 20 g/L。
3. the side that CNTs- porous nickel nickel evolving hydrogen reaction catalyst is prepared in steel surface according to claim 1 Method, it is characterised in that the electrodeposition time in step (4) is 20 min ~ 2 h.
4. the side that CNTs- porous nickel nickel evolving hydrogen reaction catalyst is prepared in steel surface according to claim 1 Method, it is characterised in that the time for soaking iron and steel/CNTs- porous nickel composite material in 30% hydrogen peroxide in step (6) be 0.5 ~ 10 h。
CN201611128354.XA 2016-12-09 2016-12-09 In the method that steel surface prepares the porous nickel nickel evolving hydrogen reaction catalyst of CNTs- Expired - Fee Related CN106591926B (en)

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