Electrostatic spinning porous carbon material and preparation method thereof

Abstract

The invention discloses an electrostatic spinning porous carbon material and a preparation method thereof. The preparation method of the electrostatic spinning porous carbon material comprises the following steps that silk fibroin, polyoxyethylene, potassium chloride and anhydrous formic acid are taken for being uniformly mixed to obtain a spinning solution; the spinning solution is subjected to electrostatic spinning to obtain an electrostatic spinning membrane, and the spinning voltage is 14-18kV; and high-temperature carbonization is carried out on the electrostatic spinning membrane in a nitrogen atmosphere to obtain the electrostatic spinning porous carbon material. The electrostatic spinning porous carbon material is prepared from a nitrogen element, and the content of the nitrogen element is 6-22 wt%. The preparation method of the electrostatic spinning porous carbon material is convenient to operate, the preparation process is easy to control, the technological process is short, and the obtained electrostatic spinning porous carbon material has good hydrophilic performance and pore structure.

Description

technical field [0001] The invention relates to an electrostatic spinning porous carbon material and a preparation method thereof. Background technique [0002] Porous carbon materials are cheap, stable, and have high specific surface area and high porosity, and are widely used in the fields of energy storage, gas adsorption and catalysis. However, due to the poor hydrophilicity and poor chemical activity of pure carbon porous materials, their application will be limited. [0003] The introduction of nitrogen heteroatoms into carbon materials can effectively change their surface chemical properties. For nitrogen doping, the commonly used methods include post-processing synthesis, chemical vapor deposition and in-situ synthesis. The post-treatment synthesis method is costly, and the treatment process is toxic and risky. The preparation conditions of the chemical vapor deposition method are harsh and the cost is high. The cost of in-situ synthesis is low, the reaction proc...

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Problems solved by technology

[0004] In the process of preparing nitrogen-doped materials by in-situ synthesis, the pretreatment of precursor substances and the control of various parameters in the process will affect the content and stability of nitrogen doping, thus affecting the performance of the final material

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