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Manchuronol sulfide electrocatalyst with high catalytic activity and stability, preparation method of Manchuronol sulfide electrocatalyst and application of Manchuronol sulfide electrocatalyst in electrolyzed water

A technology with high catalytic activity and sulfide electricity, applied in the field of electrochemistry, to achieve the effects of wide sources, low overpotential, and ultra-high stability

Active Publication Date: 2022-05-24
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the methods of sulfide electrocatalyst materials in this area.

Method used

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  • Manchuronol sulfide electrocatalyst with high catalytic activity and stability, preparation method of Manchuronol sulfide electrocatalyst and application of Manchuronol sulfide electrocatalyst in electrolyzed water
  • Manchuronol sulfide electrocatalyst with high catalytic activity and stability, preparation method of Manchuronol sulfide electrocatalyst and application of Manchuronol sulfide electrocatalyst in electrolyzed water
  • Manchuronol sulfide electrocatalyst with high catalytic activity and stability, preparation method of Manchuronol sulfide electrocatalyst and application of Manchuronol sulfide electrocatalyst in electrolyzed water

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A preparation method of a Makino ore sulfide (FeCoNiS) electrocatalyst with high catalytic activity and stability, comprising the following steps:

[0050] (1) Cut the selected nickel foam into 1*3cm 2 size, use acetone, 2mol / L hydrochloric acid, deionized water, and ethanol to ultrasonically clean the cut nickel foam for 30 minutes in turn. After cleaning, put it into a vacuum drying box at 60 °C for vacuum drying for 24 hours to obtain the pretreated foam. Nickel; in a three-electrode system with pretreated nickel foam as the working electrode, platinum sheet as the counter electrode, and silver / silver chloride electrode as the reference electrode, Zn(NO 3 ) 2 and NH 4 NO 3 The mixed solution is an electrodeposition solution, at a temperature of 80 °C and 2 mA / cm 2 Electrodeposition was carried out at a constant current density of 90 min; after the reaction was completed, the nickel foam deposited with zinc oxide nanorods was washed with deionized water and anhydr...

Embodiment 2

[0064] A preparation method of a Makino ore sulfide (FeCoNiS) electrocatalyst with high catalytic activity and stability, comprising the following steps:

[0065] (1) Cut the selected nickel foam into 1*3cm 2 size, use acetone, 2mol / L hydrochloric acid, deionized water, and ethanol to ultrasonically clean the cut nickel foam for 30 minutes in turn. After cleaning, put it into a vacuum drying box at 60 °C for vacuum drying for 24 hours to obtain the pretreated foam. Nickel; in a three-electrode system with pretreated nickel foam as the working electrode, platinum sheet as the counter electrode, and silver / silver chloride electrode as the reference electrode, Zn(NO 3 ) 2 and NH 4 NO 3 The mixed solution is an electrodeposition solution, at a temperature of 80 °C and 2 mA / cm 2 Electrodeposition was carried out at a constant current density of 90 min; after the reaction was completed, the nickel foam deposited with ZnO nanorods was washed with deionized water and anhydrous eth...

Embodiment 3

[0072] A preparation method of a Makino ore sulfide (FeCoNiS) electrocatalyst with high catalytic activity and stability, comprising the following steps:

[0073] (1) Cut the selected nickel foam into 1*3cm 2 size, use acetone, 2mol / L hydrochloric acid, deionized water, and ethanol to ultrasonically clean the cut nickel foam for 30 minutes in turn. After cleaning, put it into a vacuum drying box at 60 °C for vacuum drying for 24 hours to obtain the pretreated foam. Nickel; in a three-electrode system with pretreated nickel foam as the working electrode, platinum sheet as the counter electrode, and silver / silver chloride electrode as the reference electrode, Zn(NO 3 ) 2 and NH 4 NO 3 The mixed solution is an electrodeposition solution, at a temperature of 80 °C and 2 mA / cm 2 Electrodeposition was carried out at a constant current density of 90 min; after the reaction was completed, the nickel foam deposited with ZnO nanorods was washed with deionized water and anhydrous eth...

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Abstract

The invention provides a maquinol sulfide electrocatalyst with high catalytic activity and stability, a preparation method of the maquinol sulfide electrocatalyst and application of the maquinol sulfide electrocatalyst in electrolyzed water. The sulfide electrocatalyst is prepared by the following steps: firstly, electrically depositing a zinc oxide nanorod on the surface of foamed nickel, then electrically depositing a cobalt nanolayer on the nanorod, then etching the zinc oxide nanorod in a strong alkaline solution to form a cobalt nanotube, then soaking the cobalt nanotube in an iron-containing solution to adsorb enough iron ions on the surface, washing and drying, and finally, preparing the sulfide electrocatalyst. And finally, soaking in an organic sulfur compound to adsorb enough sulfydryl, and calcining in a tubular furnace under the protection of inert gas. The synthesis method disclosed by the invention is mild in condition, simple in process and low in equipment requirement; the obtained material is used for a water decomposition reaction, and has electrochemical properties such as ultralow overpotential and ultrahigh stability.

Description

technical field [0001] The invention relates to a makino ore sulfide electrocatalyst with high catalytic activity and stability, a preparation method thereof and an application in electrolyzed water, belonging to the technical field of electrochemistry. Background technique [0002] The rapid consumption of fossil energy and the aggravation of environmental pollution make it urgent to find new clean energy. Among various clean energy production methods, the method of using renewable energy to produce hydrogen by electrolysis of water has received extensive attention due to its high purity and environmental friendliness. However, the anodic oxygen evolution reaction (OER) in the water electrolysis process involves a four-electron transfer process that requires a high energy barrier, which requires a large amount of energy for the process to occur, so large-scale industrial hydrogen production will be greatly affected. limits. At present, the commonly used solution is to pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/075C25B11/052C25B11/061C25B11/031C25B1/04C25D5/48C25D5/50C25D3/12C25D7/00
CPCC25B11/075C25B11/052C25B11/061C25B11/031C25B1/04C25D5/48C25D5/50C25D3/12C25D7/00Y02P20/133Y02E60/36
Inventor 王建军黄远蒋立文桑元华王书华刘宏
Owner SHANDONG UNIV
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