High-density nitrogen-oxygen-chlorine co-doped carbon particle material as well as preparation method and application thereof

Abstract

The invention relates to a high-density nitrogen-oxygen-chlorine co-doped carbon particle material, and a preparation method and application thereof. The method comprises the following steps: S1, uniformly mixing hexachlorobutadiene and aniline, and carrying out a heating closed reaction in a hydrothermal kettle; S2, after the reaction is finished, naturally cooling to normal temperature and normal pressure, and washing and drying the obtained solid to obtain a dried sample; and S3, carrying out high-temperature calcination treatment on the dried material under the protection of inert gas, soas to obtain the high-density nitrogen-oxygen-chlorine co-doped carbon particles, and the invention also relates to the composite material, application and a super capacitor working electrode comprising the composite material. The high-density nitrogen-oxygen-chlorine co-doped carbon particles have excellent performance, can be used for preparing a working electrode of a super capacitor, can be used in the super capacitor, show good electrochemical energy storage characteristics, and have huge application potential and industrial value in the field of electrochemical energy storage.

Description

technical field [0001] The invention belongs to the field of inorganic functional materials and new energy electrode materials, specifically refers to a composite material and its preparation method, application and electrode prepared therefrom, especially refers to a simple and efficient high-density nitrogen, oxygen and chlorine co-doping Carbon particulate material preparation method, use and preparation method of supercapacitor comprising same. Background technique [0002] Supercapacitors, including electric double layer capacitors (EDLCs) and pseudocapacitors, are electrochemical energy storage devices that combine the properties of physical capacitors and batteries, offering higher power densities than batteries and higher energy density than conventional dielectric capacitors. Energy Density. Capacitors are a promising replacement or complement in rechargeable batteries when high power delivery and fast energy harvesting are required, while satisfying the need for h...

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Problems solved by technology

The above preparation methods involve the change of low temperature and high temperature, and the required time is longer, the energy consumption is high, and the operation is more cumbersome.

[0007] CN108039283B discloses a nitrogen-rich doped hierarchical porous carbon material based on in-situ polymerization and its preparation method and application. It is prepared by the following method: mixing imidazole derivatives and hexachlorobutadiene, ultrasonication for 1h, and heating at a temperature of Airtight reaction at 180-220°C for 4h-12h, then release the pressure to normal pressure and dry to obtain a solid substance; under the protection of an inert gas, subject the obtained solid substance to high-temperature treatment at 700-900°C to obtain the finished product ; The nitrogen-rich doped hierarchical porous carbon material based on in-situ polymerization provided by the present invention has a capacitance of 684 F/g in an acidic electrolyte solution, but the cost is high and it is difficult to obtain practical application in industry

The nitrogen-sulfur co-doped porous carbon microsphere composite material has excellent electrical properties and can be applied to the field of capacitors, but the yield is low and it is difficult to synthesize on a large scale

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