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Carbide self-supporting electro-catalysis electrode with waste plant fiber textile fabric as matrix and preparation method of carbide self-supporting electro-catalysis electrode

A plant fiber and carbide technology, applied in electrodes, electrolysis process, electrolysis components, etc., can solve the problems of difficult collection and high cost of carbon nanotubes

Pending Publication Date: 2021-07-06
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the cost of carbon nanotubes used in this method is relatively high, and the prepared electrocatalyst is in powder form, which is not easy to collect and needs further processing to obtain a usable electrocatalytic working electrode.

Method used

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  • Carbide self-supporting electro-catalysis electrode with waste plant fiber textile fabric as matrix and preparation method of carbide self-supporting electro-catalysis electrode
  • Carbide self-supporting electro-catalysis electrode with waste plant fiber textile fabric as matrix and preparation method of carbide self-supporting electro-catalysis electrode
  • Carbide self-supporting electro-catalysis electrode with waste plant fiber textile fabric as matrix and preparation method of carbide self-supporting electro-catalysis electrode

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preparation example Construction

[0039] image 3 It is a schematic flow chart of the preparation method of the electrocatalytic electrode in the embodiment of the present invention. Such as image 3 As shown, this embodiment provides a method for preparing a carbide self-supporting electrocatalytic electrode based on waste plant fiber textiles. In this embodiment, the plant fiber fabric is used as raw material, and a self-supporting high-performance transition metal carbide electrode without binder is produced in one step by "soaking-curing-baking". The method is simple and easy to operate, does not generate harmful substances in the process, and can prepare an electrocatalytic electrode with excellent performance in a green and environmentally friendly manner. The method for preparing an electrocatalytic electrode may comprise the steps of:

[0040] Step S1: Raw material preparation: raw material components by mass percentage, precursor powder 15-40%, waste plant fiber fabric 55-80%, phenolic resin 0-5%; ...

Embodiment 1

[0061] Step S1: raw material preparation: the raw material components are calculated by mass percentage, 15% of ammonium molybdate powder, 80% of waste plant fiber fabric, and 5% of phenolic resin.

[0062] Step S2: Pour the ammonium molybdate powder into 30ml of deionized water, and stir thoroughly to form a precursor solution in which ammonium molybdate is dissolved.

[0063] Step S3: Put the waste plant fiber fabric into the precursor solution, so that the waste plant fiber fabric is completely submerged in deionized water. The precursor was obtained after stirring at a constant speed with a magnetic stirring device for two hours; during this process, the waste plant fiber fabric could be fully loaded with ammonium molybdate.

[0064] Step S4: Put the precursor in an oven at 75° C. for 4 hours to completely cure the wet precursor to form a cured precursor. During this solidification process, the ammonium molybdate attached to the waste plant fiber fabric will be fixed on t...

Embodiment 2

[0067] Step S1: Raw material preparation: raw material components by mass percentage, ammonium molybdate powder 40%, waste plant fiber fabric 55%, phenolic resin 5%.

[0068] Step S2: Pour the ammonium molybdate powder into 30ml of deionized water, and stir thoroughly to form a precursor solution in which ammonium molybdate is dissolved.

[0069] Step S3: Putting waste plant fiber fabrics into the precursor solution, so that the plant fiber fabrics are completely submerged in deionized water. The precursor was obtained after stirring at a constant speed with a magnetic stirring device for 4 hours; during this process, the waste plant fiber fabric could be fully loaded with ammonium molybdate.

[0070] Step S4: Put the precursor in an oven at 110° C. for 2 hours to completely cure the wet precursor to form a cured precursor.

[0071] Step S5: Coating the phenolic resin on the cured precursor so that the cured precursor can be completely covered by the phenolic resin. The cure...

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Abstract

The invention discloses a carbide self-supporting electro-catalysis electrode with a waste plant fiber textile fabric as a matrix and a preparation method of the carbide self-supporting electro-catalysis electrode. The electro-catalysis electrode is used for electro-catalysis hydrogen production, and comprises a carbon substrate and a transition metal carbide, wherein the transition metal carbide grows on the carbon substrate by taking the carbon substrate as a carbon source, and the carbon substrate comprises a waste plant fiber fabric. According to the invention, a waste plant fiber fabric and transition metal powder are adopted to synthesize a transition metal carbide, wherein the adopted waste plant fiber fabric is beneficial to recycling of waste clothes and promotion of green development, and the cost of the transition metal powder is much lower than that of precious metal; and the carbide prepared by adopting the waste plant fiber fabric as the carbon substrate not only has better electro-catalytic performance, but also serves as an electro-catalytic electrode, so that the preparation cost is reduced, and the negative influence on the electro-catalytic performance caused by doping of an adhesive is avoided.

Description

technical field [0001] The invention relates to the technical field of electrocatalytic hydrogen production, in particular to a carbide self-supporting catalytic electrode with waste plant fiber textile as a matrix and a preparation method thereof. Background technique [0002] Compared with fossil energy, renewable energy has the advantages of being renewable, and the combustion process will not release gases that aggravate the greenhouse effect, and can promote sustainable economic development. As a kind of renewable energy, hydrogen has the advantages of high energy conversion efficiency, easy preparation, and no pollution, and has become a research hotspot in renewable energy. There are many ways to prepare hydrogen, generally including pyrolysis, water gas and electrolysis of water. Among the many methods for preparing hydrogen, the electrolysis of water requires much lower preparation temperature than other methods, and the process of preparing hydrogen by electrolysi...

Claims

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Application Information

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IPC IPC(8): C25B11/056C25B11/054C25B11/075C25B1/04
CPCC25B1/04Y02E60/36
Inventor 章雷黄军同罗智聪冯志军胡智辉李喜宝
Owner NANCHANG HANGKONG UNIVERSITY
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