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MoO2-NiSx/CC hydrogen evolution electrocatalyst and preparation method thereof

An electrocatalyst, moo2-nisx technology, applied in the field of electrocatalytic hydrogen evolution, can solve the problems of low hydrogen production efficiency, limited large-scale commercial application, poor current density stability, etc., and achieves simple preparation method and excellent electrocatalytic hydrogen evolution performance. , the effect of long service life

Active Publication Date: 2019-11-12
江西新节氢能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, hydrogen production by electrolysis of water is a very promising method. However, the low hydrogen production efficiency and poor stability of high current density limit the rapid development of this field.
[0003] Nowadays, platinum-based catalysts are recognized as the best hydrogen evolution catalysts, such as the commonly used platinum-carbon mixture Pt / C (hereinafter referred to as Pt / C), but due to the scarcity, high price and poor stability of platinum-based catalysts, it is limited. Large-scale commercial application in electrolysis of water for hydrogen evolution

Method used

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  • MoO2-NiSx/CC hydrogen evolution electrocatalyst and preparation method thereof
  • MoO2-NiSx/CC hydrogen evolution electrocatalyst and preparation method thereof
  • MoO2-NiSx/CC hydrogen evolution electrocatalyst and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] One, embodiment 1: prepare MoO according to the following steps 2 -NiS x / CC Composite,

[0028] (1) Treatment of carbon cloth: Cut the carbon cloth into a size of 1×1.5 cm, then ultrasonically wash it in 0.5 mol / L sulfuric acid solution, deionized water and ethanol for 5 minutes, cycle wash three times, and dry it naturally for later use.

[0029] (2) Preparation of nickel nitrate solution: Weigh 1.16 g of nickel nitrate hexahydrate and dissolve it in 40 mL of deionized water, sonicate for 10 minutes, and prepare a 0.1 mol / L nickel nitrate solution for later use.

[0030] (3) Electrodeposition of nickel: The electrodeposition equipment is the French Bio-Logic VMP3 multi-channel electrochemical workstation, with carbon cloth as the working electrode, platinum sheet as the counter electrode, and a saturated calomel electrode as the reference electrode. Among them, using the configured nickel nitrate solution as the electroplating solution, at -10 mA / cm 2 Electrodeposi...

Embodiment 2

[0043] (1) Treatment of carbon cloth: Cut the carbon cloth into a size of 1×1.5 cm, then ultrasonically wash it in 0.5 mol / L sulfuric acid solution, deionized water and ethanol for 5 minutes, cycle wash three times, and dry it naturally for later use.

[0044] (2) Preparation of nickel nitrate solution: Weigh 1.16 g of nickel nitrate hexahydrate and dissolve it in 40 mL of deionized water, sonicate for 10 minutes, and prepare a 0.1 mol / L nickel nitrate solution for later use.

[0045] (3) Electrodeposition of nickel: the equipment for electrodeposition is the French Bio-Logic VMP3 multi-channel electrochemical workstation. A carbon cloth was used as the working electrode, a platinum sheet was used as the counter electrode, and a saturated calomel electrode was used as the reference electrode. Among them, with the configured nickel nitrate solution as the electroplating solution, at -10 mA / cm 2 Electrodeposition was carried out for 1 hour under the electric current. After the...

Embodiment 3

[0051] (1) Treatment of carbon cloth: Cut the carbon cloth into a size of 1×1.5 cm. Then ultrasonically wash in 0.5 mol / L sulfuric acid solution, deionized water, and ethanol for 5 minutes, and cycle wash three times. Let it dry naturally.

[0052] (2) Preparation of nickel nitrate solution: Weigh 1.16 g of nickel nitrate hexahydrate and dissolve it in 40 mL of deionized water, sonicate for 10 minutes, and prepare a 0.1 mol / L nickel nitrate solution for later use.

[0053] (3) Electrodeposition of nickel: the equipment for electrodeposition is the French Bio-Logic VMP3 multi-channel electrochemical workstation. A carbon cloth was used as the working electrode, a platinum sheet was used as the counter electrode, and a saturated calomel electrode was used as the reference electrode. With the prepared nickel nitrate solution as the electroplating solution, at -10 mA / cm 2 Electrodeposition was carried out for 1 hour under the electric current. After the electrodeposition, the ...

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Abstract

The invention relates to the technical field of electrocatalytic hydrogen evolution, in particular to a MoO2-NiSx / CC hydrogen evolution electrocatalyst and a preparation method thereof. Simple two-step electrodeposition is carried out on a carbon cloth, and then vulcanization is carried out to obtain a MoO2-NiSx / CC composite material. The MoO2-NiSx / CC hydrogen evolution electrocataly has excellentelectrocatalytic hydrogen evolution performance, a long service life at high current density, and shows the application prospects of large-scale production of hydrogen in industrialization.

Description

technical field [0001] The invention relates to the technical field of electrocatalytic hydrogen evolution, in particular to a MoO2-NiSx / CC hydrogen evolution electrocatalyst and a preparation method. Background technique [0002] The development of human society is inseparable from the use of energy, and the currently widely used fossil energy (oil, natural gas, coal) is a non-renewable resource, and with the excessive exploitation and use of fossil energy, the energy crisis and environmental problems It is becoming more and more serious, and it is imminent to develop sustainable clean energy. Hydrogen, as a sustainable clean energy, has attracted widespread attention. At present, hydrogen production by electrolysis of water is a very promising method. However, the low hydrogen production efficiency and poor stability of high current density limit the rapid development of this field. [0003] Nowadays, platinum-based catalysts are recognized as the best hydrogen evolution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051C25B1/04C25B11/06
CPCB01J27/0515C25B1/04C25B11/091B01J35/33Y02E60/36
Inventor 杨秀林王本志闫普选
Owner 江西新节氢能源科技有限公司
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