Method for preparing high specific capacity and low leakage current carbon nanofiber nitrided conductive macromolecule composite material

Abstract

The invention discloses a method for preparing a high specific capacity and low leakage current carbon nanofiber nitrided conductive macromolecule composite material. The method mainly comprises the following steps: firstly, preparing carbon nanofibers (CNFs), subsequently adding the carbon nanofibers (CNFs) and a conductive macromolecule monomer into water-soluble carboxyl graphene suspension emulsion, further adding an oxidant solution, washing, nitriding to prepare a nitrogen doped porous carbon material, and finally secondarily modifying the nitrogen doped porous carbon material in the nitrogen doped porous carbon material, thereby preparing the high specific capacity and low leakage current carbon nanofiber nitrided conductive macromolecule composite material. By adopting the method, the nitrided conductive macromolecule composite material can be rapidly, effectively and cheaply prepared, meanwhile the nitrogen content of the nitrided conductive macromolecule composite material is ensured, the specific capacity is increased, and moreover by controlling variables such as the temperature and the nitrogen flowing speed, stable and effective reaction formation of the carbon nanofiber nitrided conductive macromolecule composite material is ensured, and the property of low leakage current is ensured.

Description

technical field [0001] The invention relates to the technical field of carbon materials and chemical power sources, in particular to a method for preparing a carbon nanofiber nitrided conductive polymer composite material with high specific capacity and low leakage current. Background technique [0002] Today, with the emphasis on the ecological environment and economic benefits, people are committed to obtaining low-cost and clean energy from solar and wind energy, which will fundamentally meet the growing energy demand. However, only by converting these renewable energies into electrical energy and storing them can they be used anytime and anywhere, obviously this will not be able to meet people's daily needs. Supercapacitors offer a promising way to quickly store electrical energy. In addition, supercapacitors are also widely used in many other fields, such as: mobile electronic equipment, hybrid vehicles and backup power systems. As a new type of energy device, superca...

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Problems solved by technology

However, there are no international reports on nitrogen-doped graphene oxide, and the effect of nitrogen doping on graphene oxide and corresponding graphene is still unknown.

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