Porous nickel-based carbon fiber composite material and preparation method and purpose thereof

A composite material and porous nickel technology, applied in the field of porous nickel-based carbon fiber composite materials and their preparation, can solve the problems of complex process and difficult to prepare capacitor electrode materials, etc., and achieve high specific surface area, excellent performance, excellent specific capacitance and cycle performance. Effect

Active Publication Date: 2015-11-11
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The process of preparing porous Ni is relatively complicated, and it is difficult to prepare i

Method used

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  • Porous nickel-based carbon fiber composite material and preparation method and purpose thereof
  • Porous nickel-based carbon fiber composite material and preparation method and purpose thereof
  • Porous nickel-based carbon fiber composite material and preparation method and purpose thereof

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Experimental program
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Effect test

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 hyd...

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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Abstract

The invention provides a porous nickel-based carbon fiber material and a preparation method and purpose thereof. The composite material structurally comprises a carbon fiber cloth layer, a porous nano nickel metal film layer and a nickel hydroxide layer from inside to outside successively. A nano nickel metal film is deposited on a carbon fiber cloth substrate, the nano nickel metal film is converted into a porous nano nickel metal film, nickel at the surface layer of the porous nano nickel metal film is oxidized to nickel hydroxide, and thus, the porous nickel-based carbon fiber material is obtained. The material is characterized by being light and flexible and large is the specific surface area, can be used as electrode material of a super capacitor, has obvious characteristic of fake capacitance, is high in capacity and stability, can be applied to the field of energy storage, and is wide in application prospects.

Description

technical field [0001] The invention belongs to the field of energy storage materials, and relates to a porous nickel-based carbon fiber composite material and a preparation method and application thereof. Background technique [0002] With the rapid development of wearable and portable electronic products, higher requirements are put forward for the flexible energy storage materials of the power supply, which are required to have the characteristics of light weight, flexibility, high specific capacity and excellent cycle performance. There are two commonly used energy storage methods, batteries and supercapacitors. Compared with batteries, supercapacitors can provide faster charging and discharging speeds, higher power density and excellent cycle performance, and have higher energy efficiency than commonly used electrochemical capacitors. Energy density, supercapacitor is a new energy storage method between batteries and ordinary electrochemical capacitors. [0003] Superc...

Claims

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Application Information

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IPC IPC(8): H01G11/26H01G11/24H01G11/30H01G11/86
Inventor 李晓军宋志伟褚卫国赵修臣刘颖
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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