新型炭材料2021，Vol.36Issue(6)：1128-1137,10.DOI:10.1016/S1872-5805(21)60054-9
氮/磷共掺杂废旧棉织物基活性炭的制备及其超级电容器性能
Preparation of a N-P co-doped waste cotton fabric-based activated carbon for supercapacitor electrodes
摘要
Abstract
Transforming waste resources into energy storage materials is a new way to convert them into value-added products and help solve the problems of energy shortage and environmental pollution. A nitrogen-phosphorus co-doped activated carbon was synthesized from waste cotton fabric by combining carbonization and activation in ammonium polyphosphate and a molten salt sys-tem (ZnCl2 and KCl with a molar ratio of 52:48). The morphology, microstructure and composition of the activated carbon were characterized by SEM, nitrogen adsorption, Raman spectroscopy and XPS. Cyclic voltammetry and galvanostatic charge/discharge were used to test the supercapacitor performance of the activated carbon. Results show that the co-doped activated carbon had a spe-cific surface area of 751 m2·g?1, a specific capacitance of 423 F·g?1 at a current density of 0.25 A·g?1, and a capacitance retention rate of 88.9％ after 5000 cycles at a current density of 5 A·g?1. The energy density was 28.67 Wh·kg?1 at a power density of 200 W·kg?1 for a symmetrical supercapacitor using the activated carbon.关键词
废旧棉织物/活性炭/氮磷共掺杂/超级电容器Key words
Waste cotton fabric/Activated carbon/Nitrogen/phosphorous co-dopant/Supercapacitor分类
化学化工引用本文复制引用
黄玲,王帅,张宇,黄祥红,彭俊军,杨锋..氮/磷共掺杂废旧棉织物基活性炭的制备及其超级电容器性能[J].新型炭材料,2021,36(6):1128-1137,10.基金项目
湖北省教育厅科学技术研究项目(D20191704),武汉纺织大学聚焦创新平台项目资助(193052),生物质纤维与生态染整湖北省重点实验室开放基金(STRZ201906).The Research Project of Education Ministry of Hubei Province(D2019174),the Innovation Platform Research Funds of Wuhan Textile University(193052),the fund of Hubei Key Laboratory of Bio-mass Fiber and Ecological Dyeing and Finishing(STRZ201906). （D20191704）
