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Preparation method of nickel phosphide/foamed nickel electrochemical functional hydrogen evolution material

A technology of nickel phosphide and nickel foam, which is applied in chemical instruments and methods, physical/chemical process catalysts, liquid chemical plating, etc., can solve the problems of high energy consumption and great harm to human body, and achieve excellent performance, high efficiency and stable properties , a wide range of effects

Active Publication Date: 2019-11-29
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN109267095A mentions a preparation method of a new type of nickel phosphide catalytic material, which first synthesizes a metal-organic framework precursor containing nitrogen and phosphorus atoms by the micro-droplet method, and then sinters and heat-treats it at a high temperature of 900-1100°C. Then, a nickel phosphide catalytic hydrogen evolution material was prepared. Although this method does not require an external phosphorus source, a variety of toxic chemical substances are used in the preparation of the precursor, which is harmful to the human body, and requires high temperature operation and high energy consumption.

Method used

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  • Preparation method of nickel phosphide/foamed nickel electrochemical functional hydrogen evolution material
  • Preparation method of nickel phosphide/foamed nickel electrochemical functional hydrogen evolution material
  • Preparation method of nickel phosphide/foamed nickel electrochemical functional hydrogen evolution material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Pretreatment of nickel foam collector:

[0035] ① Cutting and pre-treatment of nickel foam:

[0036] First, cut the commercially available nickel foam into small pieces with a length and width of 2cm, then place the cut nickel foam in a beaker filled with 50mL of acetone, seal the mouth of the container with plastic wrap, and then place the beaker in ultrasonic cleaning Ultrasonic treatment is carried out in the ultrasonic cleaner, the power of the ultrasonic cleaner is 90W, and the ultrasonic treatment time is 30min, so as to degrease the nickel foam sheet at room temperature; after that, the nickel foam sheet that has been degreased with acetone under ultrasonication is taken out from the beaker , it was cleaned 5 times with deionized water, then the foamed nickel sheet that was treated with acetone and cleaned was placed in a beaker containing 50 mL of 2mol / L hydrochloric acid for etching, and the mouth of the container was sealed with a plastic wrap, and then P...

Embodiment 2

[0073] (1) Pretreatment of nickel foam collector:

[0074] ① Cutting and pre-treatment of nickel foam:

[0075] First, cut the commercially available nickel foam into small pieces with a length and width of 2cm, then place the cut nickel foam in a beaker filled with 50mL of acetone, seal the mouth of the container with plastic wrap, and then place the beaker in ultrasonic cleaning Ultrasonic treatment is carried out in the ultrasonic cleaner, the power of the ultrasonic cleaner is 90W, and the ultrasonic treatment time is 30min, so as to degrease the nickel foam sheet at room temperature; after that, the nickel foam sheet that has been degreased with acetone under ultrasonication is taken out from the beaker , it was cleaned 5 times with deionized water, then the foamed nickel sheet that was treated with acetone and cleaned was placed in a beaker containing 50 mL of 2mol / L hydrochloric acid for etching, and the mouth of the container was sealed with a plastic wrap, and then P...

Embodiment 3

[0108] (1) Pretreatment of nickel foam collector:

[0109] ① Cutting and pre-treatment of nickel foam:

[0110] First, cut the commercially available nickel foam into small pieces with a length and width of 2cm, then place the cut nickel foam in a beaker filled with 50mL of acetone, seal the mouth of the container with plastic wrap, and then place the beaker in ultrasonic cleaning Ultrasonic treatment is carried out in the ultrasonic cleaner, the power of the ultrasonic cleaner is 90W, and the ultrasonic treatment time is 30min, so as to degrease the nickel foam sheet at room temperature; after that, the nickel foam sheet that has been degreased with acetone under ultrasonication is taken out from the beaker , it was cleaned 5 times with deionized water, then the foamed nickel sheet that was treated with acetone and cleaned was placed in a beaker containing 50 mL of 2mol / L hydrochloric acid for etching, and the mouth of the container was sealed with a plastic wrap, and then P...

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Abstract

Relating to the technical field of hydrogen energy application, the invention discloses a preparation method of a nickel phosphide / foamed nickel electrochemical functional hydrogen evolution material.The method includes: pretreatment of a foamed nickel current collector, preparation of a chemical nickel-phosphorus plating solution, loading of a chemical nickel-phosphorus plating coating on the surface of a foamed nickel sheet, preparation of a nickel hydroxide / foamed nickel precursor containing a nickel-phosphorus coating, and preparation of a nickel phosphide / foamed nickel self-supporting electrode. The nickel phosphide / foamed nickel self-supporting electrode prepared by the method provided by the invention has excellent electrochemical catalytic hydrogen evolution performance, efficientand stable properties, and wide application range, the required materials have wide sources, the preparation process is convenient, the requirement for the pH value condition is wide, the preparationprocess is green and pollution-free, the technical implementation process is concise, easy to operate, and low in cost, and is easy for industrial popularization.

Description

technical field [0001] The invention relates to the technical field of hydrogen energy application, in particular to a method for preparing a nickel phosphide / nickel foam electrochemical functional hydrogen evolution material. Background technique [0002] The development of efficient renewable clean energy is an important measure to deal with environmental and energy issues. In an efficient renewable energy system, a key energy storage method full of potential is to convert electrical energy into chemical energy stored in the form of fuel. This process The most important and simplest step is to split water to produce hydrogen. Compared with the industrial hydrogen production method that relies on primary energy, water electrolysis hydrogen production has attracted much attention because of its simple device, high hydrogen production purity, and high energy conversion rate; the efficiency of decomposing water to produce hydrogen depends on the hydrogen evolution reaction of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/03C25B11/04C23C18/36C25B1/04B01J27/185
CPCC25B1/04C23C18/36B01J27/1853C25B11/031C25B11/075B01J35/33Y02E60/36
Inventor 宋来洲杨淑琴霍思月王秀丽牛倩倩
Owner YANSHAN UNIV
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