High-performance composite carbon felt
A composite carbon, high-performance technology, applied in the direction of electrical components, battery electrodes, circuits, etc., can solve the problems of poor performance of a single VRB, poor hydrophilicity of carbon felt, low electrochemical activity, etc., to achieve low cost, good stability, The effect of high electrochemical catalytic activity
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[0021] A kind of high-performance composite carbon felt that the present invention proposes, comprises carbon felt and functionalized carbon nanotube covering layer, and its preparation comprises the following steps:
[0022] 1. Preparation of functionalized carbon nanotubes: First, soak 200 mg of dried carbon nanotubes in concentrated sulfuric acid for 2 hours, then put them in 500-1000ml of deionized water, stir for 40 minutes, and wash with deionized water for 6 times; Then weigh 600mg of p-aminobenzenesulfonic acid, stir for 8 hours, add 2ml of hydrochloric acid, heat the above solution in water at 40°C for 6h; weigh 1g of sodium nitrite and add it to the above solution, and react at 120°C for 2h; then the solution Suction filtration, repeated washing with ammonium sulfate, sulfuric acid and deionized water, and then drying at 110°C to obtain functionalized carbon nanotubes.
[0023] 2. Preparation of functionalized carbon nanotube solution: Weigh 50 mg of functionalized c...
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