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A kind of ni-co-w-cu-b multi-component cathode material and its preparation method and application

A ni-co-w-cu-b, cathode material technology, applied in the direction of electrodes, electrolysis components, electrolysis process, etc., can solve the application expression of hydrogen production without photocatalytic water splitting, and hydrogen production system without photocatalytic water splitting Application report and other issues

Active Publication Date: 2016-05-18
ENN SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] For example, the two patents CN200410061157 and CN200510018226 involve the electroless plating of Ni-Co-W alloys on titanium-nickel alloys as substrates, but their application is medical drug carrier, and there is no statement about the use of photocatalytic water splitting to produce hydrogen
The literature Journal of Alloys and Compounds 489 (2010) 488-492 reported the related process of synthesizing Ni-Co-W alloy with Cu as the substrate electrodeposition method, and tested the related properties, but there was no related application in the photocatalytic water splitting hydrogen production system. to report

Method used

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  • A kind of ni-co-w-cu-b multi-component cathode material and its preparation method and application
  • A kind of ni-co-w-cu-b multi-component cathode material and its preparation method and application
  • A kind of ni-co-w-cu-b multi-component cathode material and its preparation method and application

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preparation example Construction

[0037]The method for preparing Ni-Co-W-Cu-B multi-component cathode material of the present invention comprises the steps of: providing a metal suitable for use in photoelectrocatalytic water splitting to produce hydrogen as a substrate; providing a metal suitable for performing on the substrate A plating solution for electroplating deposition, the plating solution contains Ni, Co, W, Cu and B, and based on the total mass of Ni, Co, W, Cu and B in the plating solution, Ni is 26.5% by mass to 36.6% by mass, Co is 6.6 mass % to 9.2 mass %, W is 50.8 mass % to 60.7 mass %, Cu is 2.3 to 4.6 mass %, and B is 0.8 to 2.4 mass %; the substrate is placed in the obtained electroplating solution for electroplating , the Ni-Co-W-Cu-B multi-component cathode material can be obtained.

[0038] Here, the substrate is preferably copper sheet and copper mesh.

[0039] The step of providing the substrate includes the step of cleaning the substrate. For example, sand the surface of a copper sh...

Embodiment 1

[0060] 1. Cleaning of the copper mesh base: Rinse the copper mesh with a thickness of 1.0mm, a length of 8cm, and a width of 2cm with deionized water, put it into 30-65% phosphoric acid aqueous solution for ultrasonic cleaning for 30-60min, and then Rinse with a large amount of deionized water, and then put it into deionized water for ultrasonic cleaning for 30-60 minutes. After removal, wash with a large amount of deionized water, and then set it aside.

[0061] 2. Weigh 30g of nickel sulfate and put it into a beaker filled with 700mL of deionized water, and stir. After the dissolution is complete, add 7.5g of cobalt sulfate, stir, and then add 3.2g of copper sulfate pentahydrate. After the dissolution is complete, add And dissolve 11.68g of sodium chloride, 10.7g of ammonium chloride, 89.3g of sodium citrate, 80mL of ammonia water, and 2g of boric acid. After the solution is completely dissolved, slowly add 25g of sodium tungstate and stir to dissolve. After the solution is c...

Embodiment 2

[0066] 1. Cleaning of the copper sheet substrate: Polish the surface of the copper sheet with a thickness of 0.25mm, a length of 8cm, and a width of 2cm with sandpaper, then rinse it with deionized water, put it into 30-65% phosphoric acid aqueous solution and ultrasonically Wash for 30-60 minutes, then rinse with a large amount of deionized water, and then put it into deionized water for ultrasonic cleaning for 30-60 minutes. After removal, wash with a large amount of deionized water, and then set it aside.

[0067] 2. Weigh 30g of nickel nitrate into a beaker filled with 700mL of deionized water, and stir. After the dissolution is complete, add 7.5g of cobalt nitrate, stir, and then add 3.2g of copper sulfate pentahydrate. After the dissolution is complete, add And dissolve 11.68g of sodium chloride, 10.7g of ammonium chloride, 89.3g of sodium citrate, 40mL of ammonia water, and 2g of boric acid. After the solution is completely dissolved, slowly add 25g of sodium tungstate a...

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Abstract

The invention provides an Ni-Co-W-Cu-B multicomponent cathode material, and a preparation method and application thereof. The Ni-Co-W-Cu-B multicomponent cathode material comprises a substrate and an Ni-Co-W-Cu-B alloy plating layer formed on the substrate by electrodeposition, wherein the alloy plating layer comprises the following components in percentage by mass: 26.5-36.6%of Ni, 6.6-9.2% of Co, 50.8-60.7% of W, 2.3-4.6% of Cu and 0.8-2.4% of B. The Ni-Co-W-Cu-B multicomponent cathode material has the advantages of high hydrogen production rate and high stability, and is especially suitable for a hydrogen production system by photoelectric catalytic decomposition of water.

Description

technical field [0001] The invention relates to a cathode material and its preparation method and application, in particular to a Ni-Co-W-Cu-B multi-component cathode material used in a photoelectric catalytic water splitting hydrogen production system, and its preparation method . Background technique [0002] As the lifeblood of the world economy and the driving force of social development, energy has been highly valued by all countries. However, reserves of fossil fuels, which account for 90% of the world's energy supply, are increasingly depleted. At the same time, with the development of the economy, the production, conversion and use of energy have brought about serious environmental pollution, ecosystem damage and climate change, posing a serious threat to the survival and development of human beings. Scientists believe that hydrogen energy will become an important energy source in the energy arena of the 21st century. Utilizing hydrogen energy is an effective way ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/04C25D3/56C25B1/04
CPCY02E60/36
Inventor 丁天朋赵伟王文韬沈晓彦段晓菲
Owner ENN SCI & TECH DEV