文献类型：期刊文献

英文题名：N-doped carbon derived from regeneration nylon 6 used as an electroactive material for electrochemical capacitor

作者：Cheng, Liangjiang[1];Wu, Jinyao[2]

机构：[1]Wuhan Second Ship Design & Res Inst, Wuhan 430064, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：115

外文期刊名：DIAMOND AND RELATED MATERIALS

收录：;EI(收录号：20211410159384);WOS:【SCI-EXPANDED(收录号:WOS:000663127800005)】；

语种：英文

外文关键词：Nylon; Polyamide; PA6; Porous carbon; Supercapacitor

摘要：A regenerated nylon 6 that derived from waste nitrogenous polymers is firstly used as a precursor to prepare Ndoped porous carbon for electrochemical capacitors. The nitrogen that mainly consisted of pyrrole nitrogen in the obtained amorphous carbon is identified to be 3.67 at.%. The Brunauer-Emmett-Teller specific surface area of the porous carbon is determined to be 1536 m2 g-1 with a total volume of 0.89 cm3 g-1. In a three-electrode system that using 6.0 M KOH solution as an electrolyte, electrode enclosed the N-doped carbon as electroactive material delivers specific capacitance of 304 and 267 F g-1 are at current densities of 0.5 and 10 A g-1, respectively. With the same electrolyte and current density, the specific capacitance of the electrode in a twoelectrode system was evaluated to be 245 and 216 F g-1, respectively. A maximum energy density was calculated to be 8.4 W h kg-1 with a power density of 122 W kg-1 suggesting an excellent capacitive energy storage capacity. Considering the reusability of waste resources, the regenerated nylon can be regarded as one of the competitive candidates for the preparation of porous carbon for high-performance electrochemical capacitors.