CN105826573A - Surface treatment method for improving electro-catalysis hydrogen production performance - Google Patents
Surface treatment method for improving electro-catalysis hydrogen production performance Download PDFInfo
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- CN105826573A CN105826573A CN201610315618.6A CN201610315618A CN105826573A CN 105826573 A CN105826573 A CN 105826573A CN 201610315618 A CN201610315618 A CN 201610315618A CN 105826573 A CN105826573 A CN 105826573A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
- H01M4/921—Alloys or mixtures with metallic elements
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- 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
- Y02E60/50—Fuel cells
Abstract
A surface treatment method for improving electro-catalysis hydrogen production performance comprises the steps of 1, preparing a precursor with the hydrothermal growth method; 2, preparing phosphorous nanosheets or nanowires by means of the precursor prepared in the step 1; 3, conducting CV scan round by means of a three-electrode system with the nanosheets or nanowires obtained in the step 2 as a working electrode, a saturated Ag/AgCl electrode as a reference electrode and a platinum sheet as a counter electrode, wherein the surface roughness and surface active sites of the phosphorous nanosheets or nanowires are both increased after scanning. The method has the advantages that by taking Ni2P nanosheets, CoP nanowires, NiCoP nanowires and other transition metal phosphides as the working electrode, the preparing method is simple and environmentally friendly, morphology is easy to control, preparation materials are abundant, and cost is low; after CV scan round is conducted with the transition metal phosphides as the working electrode, electro-catalysis hydrogen production performance is improved greatly, and electro-catalysis performance is excellent; besides, an electro-catalyst material capable of replacing a noble metal catalyst is obtained.
Description
Technical field
The present invention relates to be electrolysed water catalysis and produce hydrogen field of material technology, a kind of surface treatment method improving electro-catalysis H2-producing capacity.
Background technology
Energy shortage and environmental pollution are the big Tough questions of two faced in current mankind process of sustainable development.Hydrogen is sustainability, environmentally friendly, and can meet a kind of energy carrier of global energy demand.Noble metal is to be currently used for most active catalyst in electrocatalytic hydrogen evolution reaction, but unfortunately, owing to they are expensive, content is rare, it is restricted during extensive product hydrogen, therefore, find low cost, abundant raw material, high electrocatalytic active material extremely urgent.
And in recent years, researchers have been made that substantial amounts of work in terms of transistion metal compound, MoSx, WS are synthesized2, MoC, CoS2, CoSe2, FeP, MoP, Ni2The low price such as P, CoP, abundant eelctro-catalyst, in these eelctro-catalysts, transition metal phosphide (such as CoP, CoP2, Ni5P4, Ni2P, Ni12P5Deng) in acidic electrolysis bath, show the most superior electrocatalytic hydrogen evolution (HER) performance.But, during completing evolving hydrogen reaction, electrocatalytic hydrogen evolution (HER) performance of most of transition metal phosphides reduces and poor stability, therefore, under alkaline electrolyte environment or neutral electrolyte environment, it is extremely necessary for studying efficient, stable electrocatalytic hydrogen evolution material property.
Furthermore, enough active sites have a significantly contribution for the electrocatalysis characteristic of material, therefore, how to construct that to have the nanostructured eelctro-catalyst of high specific surface area be the another kind of effective way improving material electro-catalysis H2-producing capacity.
Summary of the invention
In order to solve above-mentioned technological deficiency, the invention provides simple CV scan round method, make it that transition metal phosphide surface to be roughened, and then increase substantially a kind of surface treatment method improving electro-catalysis H2-producing capacity of material electro-catalysis H2-producing capacity.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it comprises the following steps:
S1: use hydrothermal growth process to prepare precursor；
S2: the precursor prepared by step S1 prepares phosphorous nanometer sheet or phosphorous nano wire；
S3: use three-electrode system, phosphorous nanometer sheet or phosphorous nano wire is obtained as working electrode, with saturated Ag/AgCl electrode as reference electrode, with platinized platinum for electrode using step S2, carrying out CV scan round, nanometer sheet phosphorous after scanning or phosphorous nanowire surface roughness all increase with surface activity site.
Preferably, step S1, comprise the following steps:
S11, first chloride and six tetramethyl tetramines or carbamide are dissolved in deionized water；
S12, will clean through hydrochloric acid, the foam nickel sheet removing surface oxide layer is vertically fixed in the polytetrafluoroethylliner liner equipped with step S11 solution, uses autoclave to seal；
S13, by step S12 seal after polytetrafluoroethylliner liner put in baking oven react, finally by product clean, be drying to obtain presoma.
Preferably, step S1, described presoma is nickel salt, cobalt salt or nickel cobalt salt compound precursor；
Preferably, step S2, comprise the following steps:
S21, employing sodium dihydric hypophosphite powder make phosphorus source, and precursor cutting step S1 prepared, and then sodium dihydric hypophosphite powder and the precursor through cutting out are put in the quartz ampoule of an end closure；
S22, the quartz ampoule of step S21 is put in program control tube furnace and calcines, cool down, and calcining is omnidistance at N2Carry out under protective effect；
S23, finally the phosphatization product deionized water that obtains through step S22 cleaned, be dried, i.e. obtain phosphorous nanometer sheet or phosphorous nano wire.
Preferably, a length of 20cm of quartz ampoule in step S21, internal diameter be 12mm, external diameter be 15mm；
Preferably, in step S21, putting into the sodium dihydric hypophosphite powder in quartz ampoule is 5cm with the precursor spacing through cutting out；
Preferably, in step S22, in calcination process, parameter is: is raised to 400 DEG C with the programming rate of 5 DEG C/min from room temperature, and is incubated 2h；
Preferably, phosphorous for acquisition nanometer sheet or phosphorous nano wire being cut into area in step S3 is that 1cm × 1cm is as working electrode；
Preferably, in step S3,1MKOH electrolyte carries out CV scan round, and sweep interval is 0.1VRHE～-0.3VRHE, sweep speed is 50mV/s～120mV/s, and the scanning number of turns is 2000 circles～5000 circles.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, its advantage is: the present invention uses Ni2The transition metal phosphides such as P nanometer sheet, CoP nano wire, NiCoP nano wire make working electrode, preparation method is simple, environmental friendliness, pattern are easily controllable, preparation abundant raw material, with low cost, simultaneously, after this type of transition metal phosphide is made work rows of electrodes CV circular treatment, electro-catalysis H2-producing capacity is conducive to significantly to promote, make electrocatalysis characteristic excellent, furthermore, a class electrocatalyst materials of alternative noble metal catalyst.
Accompanying drawing explanation
Fig. 1 a is embodiment one Ni2P nanometer sheet carries out the SEM shape appearance figure after CV circular treatment, wherein Ni2The average diameter of P nanometer sheet is about 1.5 μm；
Fig. 1 b is the SEM shape appearance figure after embodiment two CoP nano wire carries out CV circular treatment, and wherein the average diameter of CoP nano wire is about 200nm；
Fig. 1 c is the SEM shape appearance figure after embodiment three NiCoP nano wire carries out CV circular treatment, and wherein the average diameter of NiCoP nano wire is about 150nm；
From Fig. 1 a～1c, after carrying out CV circular treatment, Ni2P nanometer sheet, CoP nano wire, three electrode surfaces of NiCoP nano wire all have a lot of nano-particle, and these granules are that electrode material provides many avtive spots, and then make these three electrode material show the most superior electro-catalysis H2-producing capacity；
Fig. 2 a is embodiment one, business Pt/C (20%wt%), Ni2Before P nanometer sheet electro catalytic electrode CV circular treatment with 5000 circle CV circular treatment after polarization curve in 1MKOH, and business Pt/C (20%wt%) is at 0.5MH2SO4In polarization curve (electrode area size is 1 × 1cm2, sweep speed is 2mV/s)；
Fig. 2 b is embodiment one, business Pt/C (20%wt%), Ni2Before P nanometer sheet electro catalytic electrode CV circular treatment with 5000 circle CV circular treatment after Tafel slope in 1MKOH, and business Pt/C (20%wt%) is at 0.5MH2SO4In Tafel slope；
Fig. 3 a is embodiment two, before CoP nano wire electro catalytic electrode CV circular treatment with 5000 circle CV circular treatment after polarization curve (electrode size is 1cm × 1cm, and sweep speed is 2mV/s) in 1MKOH；
Fig. 3 b is embodiment two, before CoP nano wire electro catalytic electrode CV circular treatment with 5000 circle CV circular treatment after Tafel slope in 1MKOH；
Fig. 4 a is embodiment three, before NiCoP nano wire electro catalytic electrode CV with 5000 circle CV circular treatment after polarization curve (electrode size is 1cm × 1cm, and sweep speed is 2mV/s) in 1MKOH；
Fig. 4 b is embodiment three, before NiCoP nano wire electro catalytic electrode CV circular treatment with 5000 circle CV circular treatment after Tafel slope in 1MKOH.
Detailed description of the invention
The preparation principle of the present invention is: obtains corresponding phosphide initially with different transition metal subcarbonate phosphatizations under hypophosphites reproducibility effect, then uses different transition metal phosphides to use three-electrode system to carry out CV scan round to increase the surface roughness of material.
Embodiment one
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it comprises the following steps:
S1: use hydrothermal growth process to prepare precursor:
S11, first 9mmol Nickel dichloride. and six tetramethyl tetramines of 18mmol are dissolved in 60mL deionized water, make solution；
S12, will clean through 3M hydrochloric acid, the foam nickel sheet removing surface oxide layer is vertically fixed on equipped with in the 100mL polytetrafluoroethylliner liner of step S11 solution, uses autoclave to seal again；
S13, step S12 is sealed after polytetrafluoroethylliner liner put into the baking oven of 120 DEG C react 8h, finally product being cleaned, being dried to obtain nickel salt nanometer sheet precursor, i.e. nickel salt nanometer sheet precursor is the long nickel foam having nickel salt nanometer sheet.
S2: the precursor prepared by step S1 prepares phosphorous nanometer sheet:
S21, employing 0.9g sodium dihydric hypophosphite powder make phosphorus source, and nickel salt nanometer sheet precursor step S1 prepared is cut into 1cm × 3cm size, then sodium dihydric hypophosphite powder and the precursor through cutting out being put in the quartz ampoule of long 20cm, internal diameter 12mm, external diameter 15mm and an end closure, sodium dihydric hypophosphite powder is 5cm with the spacing of nickel salt nanometer sheet precursor；
S22, the quartz ampoule of step S21 is put in program control tube furnace calcine, be raised to 400 DEG C with the programming rate of 5 DEG C/min from room temperature, and be incubated 2h, natural cooling subsequently, whole calcination process is at N2Protective effect under carry out.
S23, finally the phosphatization product deionized water that obtains through step S22 cleaned, be dried, i.e. obtain Ni2P nanometer sheet.
S3: use three-electrode system, obtains Ni with step S22P nanometer sheet is as working electrode (i.e. Ni2P nanometer sheet electro catalytic electrode), with saturated Ag/AgCl electrode as reference electrode, with platinized platinum for electrode, 1MKOH electrolyte carries out CV scan round, sweep interval is 0.1VRHE～-0.3VRHE, sweep speed is 100mV/s, and the scanning number of turns is 5000 circles, Ni after scanning2P nanometer sheet surface roughness all increases with surface activity site, improves Ni2The electro-catalysis H2-producing capacity of P nanometer sheet；
Draw the Ni that business Pt/C (20%wt%) provides with the present embodiment2Electro catalytic activity figure before and after P nanometer sheet CV, shown in Fig. 2 a, business Pt/C (20%wt%) 10mA/cm in 0.5MH2SO42Corresponding overpotential is 30.5mV, and corresponding Tafel slope is 30.9mV/dec, and the present embodiment Ni2P nanometer sheet is at 10mA/cm2Corresponding overpotential is reduced to the 57mV after 5000 circle CV circular treatment, as shown in Figure 2 b, the present embodiment Ni simultaneously by the 144mV before CV circular treatment2P nanometer sheet corresponding Tafel slope is also reduced to the 76.7mV/dec after 5000 circle CV circular treatment by the 103.4mV/dec before CV circular treatment, illustrate the present embodiment method make material property close to business Pt/C, therefore, for Ni2P nanometer sheet carries out CV circular treatment, can significantly promote Ni2The electro-catalysis H2-producing capacity on P nanometer sheet electro catalytic electrode surface.
Embodiment two
It is with embodiment one difference:
First 9mmol cobaltous chloride and 18mmol carbamide are dissolved in 60mL deionized water by step S11, make solution；And the material that obtains of S13 be cobalt salt nano wire precursor, i.e. cobalt salt nano wire precursor be the long nickel foam having cobalt salt nano wire；
Step S21 is sodium dihydric hypophosphite powder and cobalt salt nano wire precursor through cutting out are put in quartz ampoule, and through step S23 obtain for CoP nano wire；
In step S3, using CoP nano wire as working electrode (i.e. CoP nano wire electro catalytic electrode), and after CV scan round, CoP nanowire surface roughness all increases with surface activity site, improves the electro-catalysis H2-producing capacity of CoP nano wire.
Draw the electro catalytic activity figure before and after the CoP nano wire CV circular treatment that the present embodiment provides: as shown in Figure 3 a, same 10mA/cm2Corresponding overpotential is reduced to the 55.2mV after 5000 circle CV circulations by the 141.3mV before CV, and as shown in Figure 3 b, the most corresponding Tafel slope is also reduced to the 74.3mV/dec after 5000 circle CV circulations by the 92.7mV/dec before CV.Therefore, CV circular treatment is carried out for CoP nano wire, the electro-catalysis H2-producing capacity on CoP nano wire electro catalytic electrode surface can be promoted significantly.
Embodiment three
It is with embodiment one difference:
First 3mmol Nickel dichloride., 6mmol cobaltous chloride and 18mmol carbamide are dissolved in 60mL deionized water by step S11, make solution；And the material that obtains of S13 be nickel cobalt salt nano wire precursor, i.e. nickel cobalt salt nano wire precursor be the long nickel foam having nickel cobalt salt nano wire；
Step S21 is sodium dihydric hypophosphite powder and nickel cobalt salt nano wire precursor through cutting out are put in quartz ampoule, and through step S23 obtain for NiCoP nano wire；
In step S3, using NiCoP nano wire as working electrode (i.e. NiCoP nano wire electro catalytic electrode), and NiCoP nanowire surface roughness all increases with surface activity site after CV scan round, improve the electro-catalysis H2-producing capacity of NiCoP nano wire.
Draw the electro catalytic activity figure before and after the NiCoP nano wire CV that the present embodiment provides: as shown in fig. 4 a: before CV circular treatment, NiCoP nano wire is at 10mA/cm2Corresponding overpotential is 110mV, after carrying out 5000 circle CV circular treatment, and 10mA/cm2Corresponding overpotential reduces to 53mV；As shown in Figure 4 b: the Tafel slope that NiCoP nano wire is corresponding is reduced to the 77.6mV/dec after 5000 circle CV circular treatment by the 86.2mV/dec before CV circular treatment equally.Therefore, CV circular treatment is carried out for NiCoP nano wire, the electro-catalysis H2-producing capacity on NiCoP nano wire electro catalytic electrode surface can be promoted significantly.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. the surface treatment method improving electro-catalysis H2-producing capacity, it is characterised in that: comprise the following steps:
S1: use hydrothermal growth process to prepare precursor；
S2: the precursor prepared by step S1 prepares phosphorous nanometer sheet or phosphorous nano wire；
S3: use three-electrode system, phosphorous nanometer sheet or phosphorous nano wire is obtained as working electrode, with saturated Ag/AgCl electrode as reference electrode, with platinized platinum for electrode using step S2, carrying out CV scan round, nanometer sheet phosphorous after scanning or phosphorous nanowire surface roughness all increase with surface activity site.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it is characterised in that:
Step S1, comprises the following steps:
S11, first chloride and six tetramethyl tetramines or carbamide are dissolved in deionized water；
S12, will clean through hydrochloric acid, the foam nickel sheet removing surface oxide layer is vertically fixed in the polytetrafluoroethylliner liner equipped with step S11 solution, uses autoclave to seal；
S13, by step S12 seal after polytetrafluoroethylliner liner put in baking oven react, finally by product clean, be drying to obtain presoma.
A kind of surface treatment method improving electro-catalysis H2-producing capacity the most according to claim 1 or claim 2, it is characterised in that:
Step S1, described presoma is nickel salt, cobalt salt or nickel cobalt salt compound precursor.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it is characterised in that:
Step S2, comprises the following steps:
S21, employing sodium dihydric hypophosphite powder make phosphorus source, and precursor cutting step S1 prepared, and then sodium dihydric hypophosphite powder and the precursor through cutting out are put in the quartz ampoule of an end closure；
S22, the quartz ampoule of step S21 is put in program control tube furnace and calcines, cool down, and calcining is omnidistance at N2Carry out under protective effect；
S23, finally the phosphatization product deionized water that obtains through step S22 cleaned, be dried, i.e. obtain phosphorous nanometer sheet or phosphorous nano wire.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it is characterised in that: a length of 20cm of quartz ampoule in step S21, internal diameter are 12mm, external diameter is 15mm.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it is characterised in that: in step S21, putting into the sodium dihydric hypophosphite powder in quartz ampoule is 5cm with the precursor spacing through cutting out.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it is characterised in that: in step S22, in calcination process, parameter is: is raised to 400 DEG C with the programming rate of 5 DEG C/min from room temperature, and is incubated 2h.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it is characterised in that: in step S3, it is that 1cm × 1cm is as working electrode that phosphorous for acquisition nanometer sheet or phosphorous nano wire are cut into area.
A kind of surface treatment method improving electro-catalysis H2-producing capacity, it is characterised in that: in step S3,1MKOH electrolyte carries out CV scan round, and sweep interval is 0.1VRHE～-0.3VRHE, sweep speed is 50mV/s～120mV/s, and the scanning number of turns is 2000 circles～5000 circles.
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Cited By (12)
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|---|---|---|---|---|
| CN106486680A (en) * | 2016-11-07 | 2017-03-08 | 济南大学 | A kind of preparation method of phosphatization stainless steel electrolytic water catalysis material |
| CN106672928A (en) * | 2017-01-12 | 2017-05-17 | 南京师范大学 | CoxPy porous nanometer sheet, and synthesis method and application thereof |
| CN106824238A (en) * | 2017-01-10 | 2017-06-13 | 北京化工大学 | For the bifunctional catalyst nanoscale Ni of electrolysis water2P CoP double-metal phosphides |
| CN107416785A (en) * | 2017-07-20 | 2017-12-01 | 中北大学 | Flower-shaped CoP3/Ni2The preparation method and application of P nano hybrids |
| CN107507987A (en) * | 2017-09-13 | 2017-12-22 | 南京晓庄学院 | A kind of Ru modification CoNiP is nanocrystalline and its preparation method and application |
| CN108714429A (en) * | 2018-04-19 | 2018-10-30 | 青岛大学 | A kind of rodlike CoP/CoP2The preparation method of nano-complex elctro-catalyst |
| CN109023416A (en) * | 2018-07-18 | 2018-12-18 | 江苏大学 | The preparation method of the efficient liberation of hydrogen composite material of NiCoP@graphene aerogel |
| CN109273699A (en) * | 2018-11-20 | 2019-01-25 | 肇庆市华师大光电产业研究院 | A kind of positive pole material for high-performance lithium-sulfur battery and preparation method thereof |
| CN110416564A (en) * | 2019-07-19 | 2019-11-05 | 重庆大学 | PtP-NiComPxThe synthetic method and PtP-NiCo of/C catalystmPx/ C catalyst |
| CN110921641B (en) * | 2019-11-20 | 2021-05-14 | 中国科学院山西煤炭化学研究所 | Transition metal phosphide nano material and preparation method and application thereof |
| CN115466979A (en) * | 2022-09-09 | 2022-12-13 | 上海科技大学 | Preparation method of nickel-cobalt-phosphorus electrocatalyst for efficient water electrolysis hydrogen evolution |
| CN115627493A (en) * | 2022-12-19 | 2023-01-20 | 清华大学 | Platinum-doped catalyst electrode and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106486680A (en) * | 2016-11-07 | 2017-03-08 | 济南大学 | A kind of preparation method of phosphatization stainless steel electrolytic water catalysis material |
| CN106824238A (en) * | 2017-01-10 | 2017-06-13 | 北京化工大学 | For the bifunctional catalyst nanoscale Ni of electrolysis water2P CoP double-metal phosphides |
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| CN106672928A (en) * | 2017-01-12 | 2017-05-17 | 南京师范大学 | CoxPy porous nanometer sheet, and synthesis method and application thereof |
| CN106672928B (en) * | 2017-01-12 | 2019-10-01 | 南京师范大学 | A kind of CoxPyPorous nano-sheet and its synthetic method and application |
| CN107416785A (en) * | 2017-07-20 | 2017-12-01 | 中北大学 | Flower-shaped CoP3/Ni2The preparation method and application of P nano hybrids |
| CN107507987A (en) * | 2017-09-13 | 2017-12-22 | 南京晓庄学院 | A kind of Ru modification CoNiP is nanocrystalline and its preparation method and application |
| CN108714429B (en) * | 2018-04-19 | 2020-12-29 | 青岛大学 | Rod-shaped CoP/CoP2Preparation method of nano composite electrocatalyst |
| CN108714429A (en) * | 2018-04-19 | 2018-10-30 | 青岛大学 | A kind of rodlike CoP/CoP2The preparation method of nano-complex elctro-catalyst |
| CN109023416A (en) * | 2018-07-18 | 2018-12-18 | 江苏大学 | The preparation method of the efficient liberation of hydrogen composite material of NiCoP@graphene aerogel |
| CN109273699A (en) * | 2018-11-20 | 2019-01-25 | 肇庆市华师大光电产业研究院 | A kind of positive pole material for high-performance lithium-sulfur battery and preparation method thereof |
| CN110416564A (en) * | 2019-07-19 | 2019-11-05 | 重庆大学 | PtP-NiComPxThe synthetic method and PtP-NiCo of/C catalystmPx/ C catalyst |
| CN110921641B (en) * | 2019-11-20 | 2021-05-14 | 中国科学院山西煤炭化学研究所 | Transition metal phosphide nano material and preparation method and application thereof |
| CN115466979A (en) * | 2022-09-09 | 2022-12-13 | 上海科技大学 | Preparation method of nickel-cobalt-phosphorus electrocatalyst for efficient water electrolysis hydrogen evolution |
| CN115466979B (en) * | 2022-09-09 | 2024-04-12 | 上海科技大学 | Preparation method of nickel-cobalt-phosphorus electrocatalyst for high-efficiency electrolysis of water to hydrogen |
| CN115627493A (en) * | 2022-12-19 | 2023-01-20 | 清华大学 | Platinum-doped catalyst electrode and preparation method and application thereof |
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