CN108479791A - A kind of Co/Ni-MoO2The preparation method of combined electrolysis water catalyst - Google Patents
A kind of Co/Ni-MoO2The preparation method of combined electrolysis water catalyst Download PDFInfo
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- CN108479791A CN108479791A CN201810099774.2A CN201810099774A CN108479791A CN 108479791 A CN108479791 A CN 108479791A CN 201810099774 A CN201810099774 A CN 201810099774A CN 108479791 A CN108479791 A CN 108479791A
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- electrolysis water
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- water catalyst
- catalyst
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003054 catalyst Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 25
- 239000001257 hydrogen Substances 0.000 claims abstract description 25
- QXYJCZRRLLQGCR-UHFFFAOYSA-N molybdenum(IV) oxide Inorganic materials O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 14
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims abstract description 10
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229940010552 ammonium molybdate Drugs 0.000 claims abstract description 8
- 235000018660 ammonium molybdate Nutrition 0.000 claims abstract description 8
- 239000011609 ammonium molybdate Substances 0.000 claims abstract description 8
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 4
- 239000000376 reactant Substances 0.000 claims abstract 2
- 150000002431 hydrogen Chemical class 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000002243 precursor Substances 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 abstract description 5
- 238000005984 hydrogenation reaction Methods 0.000 abstract description 2
- 239000002086 nanomaterial Substances 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229910019934 (NH4)2MoO4 Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-N hydroperoxyl Chemical compound O[O] OUUQCZGPVNCOIJ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920001992 poloxamer 407 Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- SDLBJIZEEMKQKY-UHFFFAOYSA-M silver chlorate Chemical compound [Ag+].[O-]Cl(=O)=O SDLBJIZEEMKQKY-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/883—Molybdenum and nickel
-
- B01J35/33—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/04—Mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The present invention relates to a kind of Co/Ni MoO2Combined electrolysis water catalyst for preparing hydrogen and preparation method thereof, belongs to technical field of inorganic nano-material preparation.The present invention prepares Co/Ni MoO as presoma using tetra- kinds of cobalt nitrate, nickel nitrate, ammonium molybdate and F127 substances by the method heated after ground and mixed2Catalyst.It is as follows:Dough presoma is prepared by the method for mixed grinding using cobalt nitrate, nickel nitrate, ammonium molybdate and F127 as reactant first;It is further taken up in order of priority to heat under 70 degrees Celsius and 300 degrees Celsius and Co/Ni MoO is made2Composite catalyst.
Description
Technical field
The present invention relates to a kind of Co/Ni-MoO2Combined electrolysis water catalyst for preparing hydrogen and preparation method thereof, belongs to inorganic nano
Field of material technology.
Background technology
With the continuous consumption of conventional fossil fuel and increasingly sharpening for environmental pollution, regeneration clean energy resource receives more
Carry out more extensive concern.Hydrogen Energy has the characteristics that energy density height, clean environment firendly, it is considered to be excellent fossil fuel substitutes
Product.Hydrogen can be easily prepared by the method for electrolysis water, meets practical application request.But since water-splitting reaction is
Cells with non-spontaneous reactions, gibbs free energy change are up to 237kJ/mol so that the power consumption during electrolysis water is larger.Platinum family
Metal is often used as the catalyst of electrolysis water to reduce the power consumption during water-splitting, but its price is prohibitively expensive, nothing
Method is widely used.Thus, cheap electrolysis water catalyst is developed, for the energy consumption during reduction electrolysis water, is subtracted
The dosage of the noble metals such as few platinum, the cost for reducing electrolysis water have great importance.
MoO2With the satisfactory electrical conductivity close to metal, and chemical stability is high, cheap, is expected to become a kind of important
Electrolysis water catalyst.But during electrolysis water, MoO2The very strong metal hydride of bond energy is formed between meeting and hydroperoxyl radical
Object, to reduce reaction rate.By transition metal modification to MoO2In matrix, transition metal-MoO is prepared2Composite catalyst is
Solve the problems, such as this common methods.For example, L.J. Yang et al. by Co by being doped to MoO2Method in nano wire improves
Catalytic performance(Nano Energy 41 (2017) 772-779);B.W. Ren et al. reports the MoO of Ni doping2Nanometer
Line has good electrolysis water H2-producing capacity and stability(J. Mater. Chem. A 5 (2017) 24453-24461).
But although currently having more passes through containing transition metal to MoO2Middle electrolysis water catalyst of the preparation with excellent performance
Report, but associated catalysts preparation method is often more complicated, catalyst yield is often relatively low.Exploitation it is a kind of it is of low cost,
Transition metal-MoO simple and easy to do, suitable for large-scale application2The preparation method of composite catalyst has great importance.
Invention content
The purpose of the present invention is to provide a kind of of low cost, easy-to-use Co/Ni-MoO2Combined electrolysis water hydrogen manufacturing is urged
The preparation method of agent.This preparation method provided by the invention, simple process and low cost is honest and clean, and prepared Co/Ni-
MoO2With excellent electrolysis aquatic products hydrogen catalysis performance, there is higher actual application value.
The purpose of the present invention is what is be achieved through the following technical solutions, a kind of Co/Ni-MoO2Combined electrolysis water producing hydrogen, catalyzing
The preparation method of agent, includes the following steps:
1)Weigh Co (NO respectively according to certain mol proportion3)2 .6H2O, Ni(NO3)2 .6H2O, (NH4)2MoO4(EO)106(PO)70
(EO)106In triblock polymer (Pluronic F127) to mortar;
2)Step 1 gained mixture is ground 20 minutes at room temperature, obtains dough solid;
3)Step 2 gained dough solid is transferred in quartz boat, and is positioned in Muffle furnace and obtains Co/Ni- after heating
MoO2Combined electrolysis water catalyst for preparing hydrogen.
Beneficial effects of the present invention:
(1)The present invention provides a kind of New Co/Ni-MoO2The preparation method of combined electrolysis water catalyst for preparing hydrogen, i.e., it is logical first
It crosses the method that grinding is simply mixed and prepares doughy precursor mixture, then carry out heating reaction to it and can be prepared by product.
Preparation method is simple to operation, does not need special equipment, of low cost and prepared suitable for extensive, can meet practical application
Demand;
(2)Co/Ni-MoO prepared by the present invention2Composite catalyst has excellent water electrolysis hydrogen production catalytic performance and good steady
It is qualitative.
Description of the drawings
Fig. 1 is the Co/Ni-MoO prepared by the method for the present invention2Combined electrolysis water catalyst for preparing hydrogen U.S. FEI
The low power scanning electron microscope shot after the observation of QUANTA FEG250 scanning electron microscope(SEM)Photo;
Fig. 2 is the Co/Ni-MoO prepared by the method for the present invention2Combined electrolysis water catalyst for preparing hydrogen U.S. FEI QUANTA
The high power scanning electron microscope shot after the observation of FEG250 scanning electron microscope(SEM)Photo;
Fig. 3 is the Co/Ni-MoO prepared by the method for the present invention2The X-ray diffraction of combined electrolysis water catalyst for preparing hydrogen(XRD)Figure;
Fig. 4 is the Co/Ni-MoO prepared by the method for the present invention2The x-ray photoelectron spectroscopy figure of combined electrolysis water catalyst for preparing hydrogen;
Fig. 5 is the Co/Ni-MoO prepared by the method for the present invention2Combined electrolysis water catalyst for preparing hydrogen occasion China 660D electrochemical operations
Liberation of hydrogen current density-the potential energy diagram stood obtained by test.
Specific implementation mode
Present disclosure is described in further detail below by specific implementation example with reference, but these embodiments
It is not intended to limit protection scope of the present invention.
Embodiment 1
Cobalt nitrate, nickel nitrate, ammonium molybdate and each 2.0 mMs of F127 are weighed respectively first in mortar, at room temperature mixed grinding
20 minutes obtained dough presomas.Above-mentioned presoma is transferred in Muffle furnace, in air atmosphere, first under 70 degrees Celsius
Then heating 5 hours raises the temperature to 300 degrees Centigrade and is naturally cooling to room temperature after 1 hour to get to Co/Ni-MoO2
Combined electrolysis water catalyst for preparing hydrogen.
Embodiment 2
Cobalt nitrate, nickel nitrate, ammonium molybdate and each 2.0 mMs of F127 are weighed respectively first in mortar, at room temperature mixed grinding
20 minutes obtained dough presomas.Above-mentioned presoma is transferred in Muffle furnace, in air atmosphere, first at 80 degrees celsius
Then heating 8 hours raises the temperature to 300 degrees Centigrade and is naturally cooling to room temperature after 1 hour to get to Co/Ni-MoO2
Combined electrolysis water catalyst for preparing hydrogen.
Embodiment 3
Cobalt nitrate, nickel nitrate, ammonium molybdate and each 3.0 mMs of F127 are weighed respectively first in mortar, at room temperature mixed grinding
20 minutes obtained dough presomas.Above-mentioned presoma is transferred in Muffle furnace, in air atmosphere, first under 70 degrees Celsius
Then heating 8 hours raises the temperature to 300 degrees Centigrade and is naturally cooling to room temperature after 1 hour to get to Co/Ni-MoO2
Combined electrolysis water catalyst for preparing hydrogen.
Embodiment 4
By Co/Ni-MoO2Combined electrolysis water catalyst for preparing hydrogen loads in commercial foam nickel sheet, uses occasion China 660D electrochemistry works
It stands and its electrolysis water catalytic activity and stability is tested.It is to electrode with platinum filament, silver/silver chlorate is reference electrode, bubble
Foam nickel load Co/Ni-MoO2For working electrode, 1.0 moles of every liter of KOH aqueous solutions are electrolyte solution.In -0.5 to 0.1 V
In voltage range, linear voltammetric scan is carried out with 5 milliamperes of speed of sweeping per second, you can obtain Co/Ni-MoO2Composite catalyst is catalyzed
It is electrolysed the polarization curve of aquatic products hydrogen.
Claims (3)
1. a kind of Co/Ni-MoO2The preparation method of combined electrolysis water catalyst for preparing hydrogen, it is characterised in that the step of preparation method such as
Under:
1)Doughy forerunner is made by reactant of cobalt nitrate, nickel nitrate, ammonium molybdate and F127 by the method for mixed grinding
Body mixture;
2)Step 1 gained dough is placed in Muffle furnace, is first heated 5 hours under 70 degrees Celsius, then by temperature
It is increased to 300 degrees Centigrade and is naturally cooling to room temperature after 1 hour to obtain Co/Ni-MoO2Combined electrolysis water catalyst for preparing hydrogen.
2. Co/Ni-MoO according to claim 12The preparation method of combined electrolysis water catalyst for preparing hydrogen, which is characterized in that
The precursor mixture includes tetra- kinds of cobalt nitrate, nickel nitrate, ammonium molybdate and F127 substances.
3. Co/Ni-MoO according to claim 12The preparation method of combined electrolysis water catalyst for preparing hydrogen, which is characterized in that
Cobalt nitrate in the precursor mixture, nickel nitrate, tetra- kinds of substances of ammonium molybdate and F127 molar ratio be 1:1:1:1.
Priority Applications (1)
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CN201810099774.2A CN108479791B (en) | 2018-02-01 | 2018-02-01 | Co/Ni-MoO2Preparation method of composite water electrolysis catalyst |
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CN201810099774.2A CN108479791B (en) | 2018-02-01 | 2018-02-01 | Co/Ni-MoO2Preparation method of composite water electrolysis catalyst |
Publications (2)
Publication Number | Publication Date |
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CN108479791A true CN108479791A (en) | 2018-09-04 |
CN108479791B CN108479791B (en) | 2020-11-27 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109939691A (en) * | 2019-03-27 | 2019-06-28 | 广西大学 | The carbon-clad metal particulate electrolyte water catalyst of metal oxide nano-sheet support |
CN112563522A (en) * | 2020-12-11 | 2021-03-26 | 西北大学 | Preparation method and application of cobalt-doped molybdenum dioxide electrocatalyst |
CN114774969A (en) * | 2022-03-22 | 2022-07-22 | 杭州师范大学 | MoO2/Ni-NC nano composite electrocatalyst and preparation method and application thereof |
CN114774970A (en) * | 2022-03-22 | 2022-07-22 | 杭州师范大学 | MoO2/Co-NC nano composite electrocatalyst and preparation method and application thereof |
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CN106492820A (en) * | 2015-04-08 | 2017-03-15 | 天津大学 | Three-dimensional macroporous structure molybdenum dioxide loads the synthetic method of cobalt oxide particle material |
CN106807378A (en) * | 2015-11-27 | 2017-06-09 | 中国科学院大连化学物理研究所 | A kind of hexagon nickel cobalt oxide oxygen-separating catalyst and its preparation method and application |
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2018
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CN106492820A (en) * | 2015-04-08 | 2017-03-15 | 天津大学 | Three-dimensional macroporous structure molybdenum dioxide loads the synthetic method of cobalt oxide particle material |
CN106807378A (en) * | 2015-11-27 | 2017-06-09 | 中国科学院大连化学物理研究所 | A kind of hexagon nickel cobalt oxide oxygen-separating catalyst and its preparation method and application |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109939691A (en) * | 2019-03-27 | 2019-06-28 | 广西大学 | The carbon-clad metal particulate electrolyte water catalyst of metal oxide nano-sheet support |
CN109939691B (en) * | 2019-03-27 | 2021-11-26 | 广西大学 | Carbon-coated metal particle electrolytic water catalyst supported by metal oxide nanosheets |
CN112563522A (en) * | 2020-12-11 | 2021-03-26 | 西北大学 | Preparation method and application of cobalt-doped molybdenum dioxide electrocatalyst |
CN114774969A (en) * | 2022-03-22 | 2022-07-22 | 杭州师范大学 | MoO2/Ni-NC nano composite electrocatalyst and preparation method and application thereof |
CN114774970A (en) * | 2022-03-22 | 2022-07-22 | 杭州师范大学 | MoO2/Co-NC nano composite electrocatalyst and preparation method and application thereof |
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