A kind of preparation method of self-supporting composite electrode material
A composite electrode and composite material technology, applied in electrodes, electrolysis components, electrolysis process, etc., can solve the problems of high price, limited commercial application, low abundance of precious metals, etc., and achieve a simple method, good stability, and mild synthesis conditions. Effect
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Embodiment 1
[0044] A preparation method of a self-supporting composite electrode material: comprising the following steps
[0045] 1. Cleaning steps:
[0046] Use anhydrous acetone, anhydrous ethanol, and deionized water to ultrasonically clean the carbon cloth (Taiwan W0S1009) in turn for 10 minutes to remove surface contaminants;
[0047] 2. Electrodeposition steps:
[0048] At room temperature, 20 mL of a solution containing 0.05 M cobalt chloride hexahydrate and 0.03 M citric acid was used as the electrolyte, 30 mA cm -2 Electrodeposition was carried out for 1 hour. After deposition, the electrode material was obtained by washing with deionized water and absolute ethanol for 3 times respectively. The cathodic electrodeposition reaction is a two-electrode system, the working electrode is a carbon cloth, and the counter electrode is a carbon rod.
[0049] 3. Preparation steps of composite materials
[0050] Prepare a mixed solvent of N,N-dimethylformamide: absolute ethanol: deionize...
Embodiment 2
[0055] 1. Cleaning steps:
[0056] Use anhydrous acetone, anhydrous ethanol, and deionized water to ultrasonically clean the carbon cloth (Taiwan W0S1009) in turn for 10 minutes to remove surface contaminants;
[0057] 2. Electrodeposition steps:
[0058] At room temperature, 20 mL of a solution containing 0.05 M cobalt chloride hexahydrate and 0.03 M citric acid was used as the electrolyte, 30 mA cm -2 Electrodeposition was carried out for 1 hour. After deposition, the electrode material was obtained by washing with deionized water and absolute ethanol for 3 times respectively. The cathodic electrodeposition reaction is a two-electrode system, the working electrode is a carbon cloth, and the counter electrode is a carbon rod.
[0059] 3. Preparation steps of composite materials
[0060] Prepare a mixed solvent of N,N-dimethylformamide: absolute ethanol: deionized water = 5:1:1, dissolve 2,5-dihydroxyterephthalic acid in the mixed solvent to make the concentration 1×10 -3 ...
Embodiment 3
[0071] A preparation method of a self-supporting composite electrode material: comprising the following steps
[0072] 1. Cleaning steps:
[0073] Use anhydrous acetone, anhydrous ethanol, and deionized water to ultrasonically clean the carbon cloth (Taiwan W0S1009) in turn for 10 minutes to remove surface contaminants;
[0074] 2. Electrodeposition steps:
[0075] At room temperature, 20 mL of a solution containing 0.05 M cobalt chloride hexahydrate and 0.03 M citric acid was used as the electrolyte, 30 mA cm -2 Electrodeposition was carried out for 1 hour. After deposition, the electrode material was obtained by washing with deionized water and absolute ethanol for 3 times respectively. The cathodic electrodeposition reaction is a two-electrode system, the working electrode is a carbon cloth, and the counter electrode is a carbon rod.
[0076] 3. Preparation steps of composite materials
[0077] Prepare a mixed solvent of N,N-dimethylformamide: absolute ethanol: deionize...
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