Method for preparing bismuth-boron-based flexible catalytic electrode in organic phase

Abstract

The invention discloses a method for preparing a bismuth-boron-based flexible catalytic electrode in an organic phase, which comprises the following steps of by taking a metal bismuth-boron compound as a precursor, adding a reducing agent, a complexing agent, a buffering agent and an organic solution, and mixing in proportion to prepare a plating solution, ultrasonically cleaning a substrate material in deionized water, and soaking the substrate material in deionized water, ethanol and acetone in sequence, immersing a flexible substrate material in a metal salt solution, dipping the flexible substrate material in hydroboron for 2s to complete activation of a flexible non-conductive substrate, and washing the flexible non-conductive substrate with deionized water and ethanol in sequence for later use, and immersing the pretreated substrate material into the plating solution prepared in the first step, carrying out chemical plating reaction, taking out the substrate material, and washing with ethanol to obtain the electrode material, namely the product. The preparation method is simple, the universality is better, the manufacturing cost is lower, the concentration can be changed in a larger range, the stability is good, and the requirement on the working environment is low.

Description

technical field

[0001] The invention relates to the technical field of catalytic materials for electrolysis of water, in particular to a preparation method for realizing a bismuth boron-based flexible catalytic electrode in an organic phase. Background technique

[0002] The water electrolysis technology method is an efficient and clean hydrogen evolution method. The hydrogen evolution process is simple, the product purity is high, and the hydrogen purity can generally reach 99%. It has potential application scenarios for large-scale hydrogen production, and is in response to global energy challenges and environmental degradation. Problems and other aspects have great scientific value and engineering application significance. However, in the process of electrolysis of water, the redox reaction and ion transport resistance cause the electrolysis potential to rise, causing the overpotential phenomenon, that is, in the actual electrolysis process, a voltage greater than 1.23V (...

Examples

preparation example Construction

[0025] refer to Figure 1-5 , a method for preparing a bismuth boron-based flexible catalytic electrode in an organic phase, comprising: S1, by using a metal bismuth boron compound as a precursor, adding a reducing agent, a complexing agent, a buffer and an organic solution, according to a given The dosage ratio is mixed to prepare the plating solution;

[0026] S2. After ultrasonic cleaning of the base material in deionized water, the base material is then soaked in deionized water, ethanol and acetone in sequence to remove surface stains;

[0027] S3, immersing the flexible substrate material in the metal salt solution, and dipping it in borohydride for 2 s at the same time to complete the activation of the flexible non-conductive substrate, and then washing it with deionized water and ethanol in turn for use;

[0028] S4. Immerse the pretreated base material in step S3 into the plating solution prepared in step S1, take out the base material after electroless plating react...

Embodiment example 1

[0037] Example 1, Preparation of Bi-B@Cloth Electrode Catalytic Materials

[0038] Use deionized water to sonicate the cloth for 5 minutes to remove stains on the surface of the cloth substrate;

[0039] (2) using sodium borohydride solution and nickel sulfate solution dropwise on the cloth in step (1) to activate, and the activation time is 1-2s;

[0040] (3) The chemical plating solution containing Bi-B is configured, and the amount ratio of each substance and the experimental conditions are shown in the following table:

[0041]

[0042] The cloth substrate in step (2) is immersed in a Bi-B electroless plating solution, and chemically deposited at 5-40° C. for 30 minutes to 8 hours to obtain catalytic electrode materials with different deposition thicknesses. After washing with deionized water, After drying, Bi-B@Cloth electrodes can be prepared. The electrode photo and SEM image are as follows figure 2 (a-f);

[0043] (4) The hydrogen evolution reaction test was ca...

Embodiment 2

[0044] Example 2, Preparation of Bi-B-Ni@Paper Electrode Catalytic Material

[0045] (1) Ultrasonic cloth with deionized water for 5 minutes to remove stains on the surface of the paper substrate;

[0046] (2) dropwise on the paper sheet of step (1) with sodium borohydride solution and nickel sulfate solution, carry out activation for 2 seconds (s);

[0047] (3) The chemical plating solution containing Bi-B-Ni is configured, and the amount ratio of each substance and the experimental conditions are shown in the following table:

[0048]

[0049] The paper substrate in step (2) is immersed in the above solution, and chemically deposited at 5-40° C. for 30 minutes to 8 hours; catalytic electrode materials with different deposition thicknesses can be obtained, rinsed with deionized water, and dried to obtain electrodes. . Electrode photos such as image 3 (a);

[0050] (4) The hydrogen evolution reaction test was carried out using an electrochemical workstation at a room t...

technical field

[0001] The invention relates to the technical field of catalytic materials for electrolysis of water, in particular to a preparation method for realizing a bismuth boron-based flexible catalytic electrode in an organic phase. Background technique

[0002] The water electrolysis technology method is an efficient and clean hydrogen evolution method. The hydrogen evolution process is simple, the product purity is high, and the hydrogen purity can generally reach 99%. It has potential application scenarios for large-scale hydrogen production, and is in response to global energy challenges and environmental degradation. Problems and other aspects have great scientific value and engineering application significance. However, in the process of electrolysis of water, the redox reaction and ion transport resistance cause the electrolysis potential to rise, causing the overpotential phenomenon, that is, in the actual electrolysis process, a voltage greater than 1.23V (...

Examples

preparation example Construction

[0025] refer to Figure 1-5 , a method for preparing a bismuth boron-based flexible catalytic electrode in an organic phase, comprising: S1, by using a metal bismuth boron compound as a precursor, adding a reducing agent, a complexing agent, a buffer and an organic solution, according to a given The dosage ratio is mixed to prepare the plating solution;

[0026] S2. After ultrasonic cleaning of the base material in deionized water, the base material is then soaked in deionized water, ethanol and acetone in sequence to remove surface stains;

[0027] S3, immersing the flexible substrate material in the metal salt solution, and dipping it in borohydride for 2 s at the same time to complete the activation of the flexible non-conductive substrate, and then washing it with deionized water and ethanol in turn for use;

[0028] S4. Immerse the pretreated base material in step S3 into the plating solution prepared in step S1, take out the base material after electroless plating react...

Embodiment example 1

[0037] Example 1, Preparation of Bi-B@Cloth Electrode Catalytic Materials

[0038] Use deionized water to sonicate the cloth for 5 minutes to remove stains on the surface of the cloth substrate;

[0039] (2) using sodium borohydride solution and nickel sulfate solution dropwise on the cloth in step (1) to activate, and the activation time is 1-2s;

[0040] (3) The chemical plating solution containing Bi-B is configured, and the amount ratio of each substance and the experimental conditions are shown in the following table:

[0041]

[0042] The cloth substrate in step (2) is immersed in a Bi-B electroless plating solution, and chemically deposited at 5-40° C. for 30 minutes to 8 hours to obtain catalytic electrode materials with different deposition thicknesses. After washing with deionized water, After drying, Bi-B@Cloth electrodes can be prepared. The electrode photo and SEM image are as follows figure 2 (a-f);

[0043] (4) The hydrogen evolution reaction test was ca...

Embodiment 2

[0044] Example 2, Preparation of Bi-B-Ni@Paper Electrode Catalytic Material

[0045] (1) Ultrasonic cloth with deionized water for 5 minutes to remove stains on the surface of the paper substrate;

[0046] (2) dropwise on the paper sheet of step (1) with sodium borohydride solution and nickel sulfate solution, carry out activation for 2 seconds (s);

[0047] (3) The chemical plating solution containing Bi-B-Ni is configured, and the amount ratio of each substance and the experimental conditions are shown in the following table:

[0048]

[0049] The paper substrate in step (2) is immersed in the above solution, and chemically deposited at 5-40° C. for 30 minutes to 8 hours; catalytic electrode materials with different deposition thicknesses can be obtained, rinsed with deionized water, and dried to obtain electrodes. . Electrode photos such as image 3 (a);

[0050] (4) The hydrogen evolution reaction test was carried out using an electrochemical workstation at a room t...

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