A layered double metal hydroxide-polyaniline modified porous conductive composite material and its preparation method and application
A layered bimetallic, porous conductive technology, applied in metal material coating process, electrolytic coating, superimposed layer plating, etc. The effect of inducing ordered growth, simple steps and low cost
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Embodiment 1
[0055] Add 0.934 mL of aniline to 100 mL of sulfuric acid aqueous solution with a concentration of 1 mol / L, and stir until the solution is clear. Using the above solution as the electrolyte solution and the carbon cloth as the working electrode, cyclic sweep voltammetry was performed to obtain the polyaniline-deposited carbon cloth. The scan rate of cyclic voltammetry is 100mV / s, the voltage window is -0.2 to 0.8V, and the scan time is 2min. The resulting polyaniline-deposited carbon cloth was washed several times with deionized water and dried in vacuum.
[0056] In 50mL deionized water, add 0.45g CoSO 4 , 0.21g NiSO 4 And 1.153g urea was stirred and dissolved. Add the carbon cloth with polyaniline deposited on the surface into the above solution and fully immerse it.
[0057] The above system was moved to a hydrothermal kettle, and placed in a vacuum oven for crystallization at 110° C. for 12 hours. After the reaction was completed, it was taken out after cooling down t...
Embodiment 2
[0062] Add 1.5 mL of aniline to 100 mL of sulfuric acid aqueous solution with a concentration of 1 mol / L, and stir until the solution is clear. The above solution is used as the electrolyte solution, and nickel foam is used as the working electrode, and constant voltage electrodeposition is carried out. The deposition voltage is 0.8V, and the deposition time is 4min. The obtained polyaniline-deposited nickel foam was washed several times with deionized water, and then vacuum-dried.
[0063] In 50mL deionized water, add 1.5g CoSO 4 , 0.75g NiSO 4 And 2.153g urea was stirred and dissolved. Add the foamed nickel with polyaniline deposited on the surface into the above solution and fully immerse it.
[0064] The above system was moved to a hydrothermal kettle, and placed in a vacuum oven for crystallization at 110°C for 8 hours. After the reaction is finished, take it out after cooling down to room temperature, wash it several times with deionized water, and finally dry it in...
Embodiment 3
[0068] Add 9.34 mL of aniline to 100 mL of sulfuric acid aqueous solution with a concentration of 5 mol / L, and stir until the solution is clear. Using the above solution as an electrolyte solution and a stainless steel mesh as a working electrode, cyclic sweep voltammetry was performed to obtain a polyaniline-deposited stainless steel mesh. The scan rate of cyclic voltammetry is 10mV / s, the voltage window is -0.6 to 1V, and the scan time is 25min. The resulting polyaniline-deposited stainless steel mesh was washed several times with deionized water and dried in vacuum.
[0069] In 50mL deionized water, add 0.9g Co(NO 3 ) 2 , 0.42g Ni(NO 3 ) 2 and 2.30g of urea were stirred and dissolved. Add the stainless steel mesh with polyaniline deposited on the surface into the above solution and fully immerse it.
[0070] The above system was moved to a hydrothermal kettle, and placed in a vacuum oven for crystallization at 110° C. for 12 hours. After the reaction was completed, i...
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