A kind of porous nickel-based carbon fiber composite material and its preparation method and application
A technology of composite materials and porous nickel, which is applied in the field of porous nickel-based carbon fiber composite materials and its preparation, can solve the problems of complicated process and difficult preparation of capacitor electrode materials, and achieve the effect of high specific surface area, excellent performance and high stability
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Embodiment 1
[0060] In this embodiment, the porous nickel-based carbon fiber composite material is prepared by the following method, which specifically includes the following steps:
[0061] (1) Using carbon fiber cloth as the substrate, the carbon fiber cloth was ultrasonically cleaned in acetone and absolute ethanol for 30 min, then rinsed with deionized water for 5 times, then heated and dried at 120 °C for 12 h, and then put into the sputter deposition chamber , using metallic nickel as the sputtering target material for sputtering deposition, where the parameters of sputtering deposition are: background vacuum degree is 6×10 -5 Pa, the sputtering power is DC 105W, the sputtering pressure is 0.5Pa, the sputtering time is 2h, and the deposition temperature is 25°C;
[0062] (2) Immerse the carbon fiber cloth deposited with the metal nickel film obtained in step (1) in a hydrochloric acid solution with a molar concentration of 2.5mol / L, take it out after 270s, wash and remove residual hydr...
Embodiment 2
[0070] In this embodiment, the porous nickel-based carbon fiber composite material is prepared by the following method, which specifically includes the following steps:
[0071] (1) Using carbon fiber cloth as the substrate, the carbon fiber cloth was ultrasonically cleaned in acetone and absolute ethanol for 10 min, then rinsed with deionized water for 10 times, then heated and dried at 110 °C for 24 h, and then put into the sputter deposition chamber , using metallic nickel as the sputtering target material for sputtering deposition, where the parameters of sputtering deposition are: background vacuum degree is 1×10 -5 Pa, the sputtering power is DC 80W, the sputtering pressure is 1Pa, the sputtering time is 3h, and the deposition temperature is 20°C;
[0072] (2) Immerse the carbon fiber cloth deposited with the metal nickel film obtained by step (1) in a hydrochloric acid solution with a molar concentration of 1mol / L, take it out after 200s, clean and remove residual hydro...
Embodiment 3
[0076] In this embodiment, the porous nickel-based carbon fiber composite material is prepared by the following method, which specifically includes the following steps:
[0077] (1) Using carbon fiber cloth as the substrate, the carbon fiber cloth was ultrasonically cleaned in acetone and absolute ethanol for 50 min, then rinsed with deionized water for 3 times, then heated and dried at 130 °C for 20 h, and then put into the sputter deposition chamber , using metallic nickel as the sputtering target material for sputtering deposition, where the parameters of sputtering deposition are: background vacuum degree is 4×10 -5 Pa, the sputtering power is DC 100W, the sputtering pressure is 1.5Pa, the sputtering time is 1h, and the deposition temperature is 30°C;
[0078] (2) the carbon fiber cloth that step (1) is deposited with the metallic nickel thin film is immersed in the sulfuric acid solution that the molar concentration is 4mol / L, takes out after 300s, cleans and removes resi...
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