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A kind of preparation method of electroless nickel-boron alloy hydrogen evolution electrode

A hydrogen evolution electrode and electroless nickel plating technology, which is applied in liquid chemical plating, electrodes, electrolytic components, etc., can solve the problems of high price, increased industrial production cost, and complicated preparation methods

Active Publication Date: 2021-07-06
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, Pt and other precious metals and their alloys have the best performance in hydrogen electrolysis electrodes for electrolysis of water, but they are expensive, which will greatly increase the cost of industrial production
In terms of non-noble metals, Co, Ni and other non-noble metals have been studied more, and the performance of hydrogen evolution electrodes composed of them has been greatly improved, but they also face problems such as complex preparation methods and large overpotentials that restrict large-scale production. application in

Method used

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  • A kind of preparation method of electroless nickel-boron alloy hydrogen evolution electrode
  • A kind of preparation method of electroless nickel-boron alloy hydrogen evolution electrode
  • A kind of preparation method of electroless nickel-boron alloy hydrogen evolution electrode

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Embodiment 1

[0026] In this embodiment, a method for preparing an electroless nickel-boron alloy hydrogen evolution electrode is carried out according to the following steps:

[0027] a. Put the three-dimensional nickel foam into the configured mass fraction of 1.5% NaOH, 4% Na 2 CO 3 , 3.5% Na 3 PO 4 , 0.06% sodium lauryl sulfate mixed solution at 80°C for two hours, then washed with ultrapure water until neutral.

[0028] b. Put the three-dimensional nickel foam treated in step a into a dilute hydrochloric acid solution with a molar mass of 3 mol / L for acidification and activation for about 5 minutes, and then rinse it with ultrapure water until neutral.

[0029] c. Electrochemically degrease the three-dimensional nickel foam obtained in step b for about 200 seconds, and rinse it with clean water.

[0030] d. Configure nickel chloride hexahydrate, sodium borohydride, sodium hydroxide and ethylenediamine into a plating solution according to a certain ratio, put the treated foam nickel...

Embodiment 2

[0036] In this embodiment, a method for preparing an electroless nickel-boron alloy hydrogen evolution electrode is carried out according to the following steps:

[0037] a. Put the three-dimensional nickel foam into the prepared solution containing 1.5% NaOH and 4% NaOH 2 CO 3 , 3.5% Na 3 PO 4 , 0.06% sodium lauryl sulfate mixed solution at 80°C for two hours, then washed with ultrapure water until neutral.

[0038] b. Put the three-dimensional nickel foam treated in step a into a dilute hydrochloric acid solution with a molar mass of 3 mol / L for acidification and activation for about 5 minutes, and then rinse it with ultrapure water until neutral.

[0039] c. Electrochemically degrease the three-dimensional nickel foam obtained in step b for about 200 seconds, and rinse it with clean water.

[0040] d. Configure nickel chloride hexahydrate, sodium borohydride, sodium hydroxide and ethylenediamine into a plating solution according to a certain ratio, put the treated foam ...

Embodiment 3

[0045] In this embodiment, a method for preparing an electroless nickel-boron alloy hydrogen evolution electrode is carried out according to the following steps:

[0046] a. Put the three-dimensional nickel foam into the prepared solution containing 1.5% NaOH and 4% NaOH 2 CO 3 , 3.5% Na 3 PO 4 , 0.06% sodium lauryl sulfate mixed solution at 80°C for two hours. Then wash with ultrapure water until neutral.

[0047] b. Put the three-dimensional nickel foam treated in step a into a dilute hydrochloric acid solution with a molar mass of 3 mol / L for acidification and activation for about 5 minutes, and then rinse it with ultrapure water until neutral.

[0048] c. Electrochemically degrease the three-dimensional nickel foam obtained in step b for about 200 seconds, and rinse it with clean water.

[0049] d. Configure nickel chloride hexahydrate, sodium borohydride, sodium hydroxide and ethylenediamine into a plating solution according to a certain ratio, put the treated foam n...

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Abstract

A method for preparing an electroless nickel-boron alloy hydrogen-evolving electrode. First, the three-dimensional nickel foam is cleaned, and then nickel chloride hexahydrate, sodium borohydride, sodium hydroxide, and ethylenediamine are configured into a plating solution according to a certain proportion, and the treated Put the good nickel foam into it, react at 85°C for 30-50 minutes, and dry it after the reaction to prepare nano-sheet-shaped boron-nickel high-efficiency electrocatalytic hydrogen evolution electrodes; finally pass in argon or nitrogen for 30-60 minutes to ensure that the furnace The volume of argon / nitrogen in the cavity is more than 90%. Calcination is carried out at 100°C-300°C, and the heat preservation is carried out for 2-3 hours, and the electroless nickel-boron alloy hydrogen evolution electrode can be obtained. The preparation process of the present invention is simple and easy to operate. High performance, the obtained electrode has excellent performance in catalytic hydrogen evolution.

Description

technical field [0001] The invention belongs to the technical field of electrochemical hydrogen production, in particular to a preparation method of an electroless nickel-boron alloy hydrogen evolution electrode. Background technique [0002] Non-renewable energy is currently the most consumed energy in the world. However, with the continuous increase of social demand and the continuous exploitation of human beings, most of the fossil energy will be exhausted in this century. At the same time, the use of fossil energy will produce a large amount of CO 2 , thereby threatening the global ecological environment. Therefore, the development of clean and renewable energy is the direction of world energy development in the future, and it is also an urgent need for national economic development. Since the product of hydrogen combustion is water, it is considered to be one of the cleanest energy sources on earth. The production, storage, transportation and application of hydrogen ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/089C25B11/031C25B1/04C23C18/34
CPCC23C18/34C25B1/04C25B11/031C25B11/051C25B11/057C25B11/075Y02E60/36
Inventor 肖春辉赵双丁书江林培玲
Owner XI AN JIAOTONG UNIV