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A kind of nickel phosphorus copper electrocatalyst and preparation method thereof

A technology of catalyst and copper electricity, which is applied in the field of materials, can solve the problems of large-scale production limitations, reduce the overpotential of hydrogen evolution, and limited availability, and achieve the best surface structure and performance, non-toxic and harmless physical and chemical properties, and enhanced The effect of catalytic efficiency

Active Publication Date: 2020-06-19
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water electrolysis as an effective method for producing fuel-grade hydrogen is limited in large-scale production due to excessive energy consumption
In the prior art, platinum-based catalysts are considered to be a highly efficient hydrogen evolution reaction catalyst with excellent hydrogen evolution performance, but they cannot be used in industrial production because of their high price and limited availability; therefore, it is necessary to provide an effective A non-precious metal electrocatalyst that reduces the hydrogen evolution overpotential and a method for preparing an electrocatalyst with a non-noble metal, so that the electrocatalyst has excellent electrocatalytic performance and can be used in industrial production instead of a noble metal catalyst

Method used

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  • A kind of nickel phosphorus copper electrocatalyst and preparation method thereof
  • A kind of nickel phosphorus copper electrocatalyst and preparation method thereof
  • A kind of nickel phosphorus copper electrocatalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of Nickel Phosphorus Copper Electrocatalyst

[0030] (1) Pretreatment of electrode materials: use carbon rods as anodes, nickel sheets as cathodes, use 20% hydrochloric acid to clean the nickel sheets in an ultrasonic cleaner for 30 minutes to remove the surface oxide layer, then wash with deionized water, and dry spare;

[0031] (2) Electrolyte preparation: Pipette 100mL concentration of 0.2M nickel chloride, 100mL concentration of 0.2M sodium phosphate, 100mL concentration of 0.25M ammonium chloride and 100mL concentration of 0.02M copper chloride with a pipette gun Stir the solution into a glass beaker with a magnetic stirrer for 30 minutes, and stir until the flocs in the solution are evenly suspended in the solution to obtain an electrolyte;

[0032] (3) Deposition of nickel-phosphorus-copper electrocatalyst: In the electrolyte solution prepared in step (2), put the electrode material in step (1), and use IT6874A DC power supply to set a constant curre...

Embodiment 2

[0042] Preparation of Nickel Phosphorus Copper Electrocatalyst

[0043](1) Pretreatment of electrode materials: use carbon rods as anodes, nickel sheets as cathodes, use 20% hydrochloric acid to clean the nickel sheets in an ultrasonic cleaner for 30 minutes to remove the surface oxide layer, then wash with deionized water, and dry spare;

[0044] (2) Preparation of electrolyte solution: Pipette 300mL concentration of 0.2M nickel chloride, 300mL concentration of 0.2M sodium phosphate, 300mL concentration of 0.25M ammonium chloride and 300mL concentration of 0.01M copper chloride with a pipette gun Stir the solution into a glass beaker with a magnetic stirrer for 30 minutes, and stir until the flocs in the solution are evenly suspended in the solution to obtain an electrolyte;

[0045] (3) Deposition of nickel-phosphorus-copper electrocatalyst: In the electrolyte solution prepared in step (2), put the electrode material in step (1), and use IT6874A DC power supply to set a con...

Embodiment 3

[0051] Preparation of Nickel Phosphorus Copper Electrocatalyst

[0052] (1) Pretreatment of electrode materials: use carbon rods as anodes, nickel sheets as cathodes, use 20% hydrochloric acid to clean the nickel sheets in an ultrasonic cleaner for 30 minutes to remove the surface oxide layer, then wash with deionized water, and dry spare;

[0053] (2) Preparation of electrolyte: pipette 450mL concentration of 0.2M nickel chloride, 450mL concentration of 0.2M sodium phosphate, 450mL concentration of 0.25M ammonium chloride and 450mL concentration of 0.03M copper chloride with a pipette gun Stir the solution into a glass beaker with a magnetic stirrer for 30 minutes, and stir until the flocs in the solution are evenly suspended in the solution to obtain an electrolyte;

[0054] (3) Deposition of nickel-phosphorus-copper electrocatalyst: In the electrolyte solution prepared in step (2), put the electrode material in step (1), and use IT6874A DC power supply to set a constant cu...

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Abstract

The invention discloses a nickel-phosphorus-copper electrocatalyst and a preparation method thereof. The nickel-phosphorus-copper electrocatalyst contains, by mole percent, 31.1-51.6% of nickel, 32.5-48.4% of phosphorus and 10-36.4% of copper. An electro-deposition method is applied to a nickel sheet to prepare the nickel-phosphorus-copper electrocatalyst. The preparation method of the nickel-phosphorus-copper electrocatalyst is simple, easy in operation and low in raw material and preparation cost, physicochemical properties are stable, adverse influences on the environment are avoided, catalysis efficiency is greatly improved by a unique dendritic nanotube structure, and industrial large-scale production is benefited.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a nickel-phosphorus-copper electrocatalyst and a preparation method thereof. Background technique [0002] Hydrogen has the characteristics of renewable, high energy density, no pollution and only water after the reaction, which is an ideal energy source to replace conventional fossil fuels. Water electrolysis is an effective method for producing fuel-grade hydrogen, but it is limited in large-scale production because of high energy consumption. In the prior art, platinum-based catalysts are considered to be a highly efficient hydrogen evolution reaction catalyst with excellent hydrogen evolution performance, but they cannot be used in industrial production because of their high price and limited availability; therefore, it is necessary to provide an effective A non-precious metal electrocatalyst that reduces the overpotential of hydrogen evolution and a method for preparing a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/185B01J35/02C25B1/04C25B11/06
CPCB01J27/1853B01J35/0033B01J35/02C25B1/04C25B11/04Y02E60/36
Inventor 张新宇曹萌秦家千刘日平马明臻
Owner YANSHAN UNIV
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