期刊
ELECTROCHIMICA ACTA
卷 331, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2019.135348
关键词
Biomass derived carbon; Sheet-like microstructure; N; S co-doping; Supercapacitors
资金
- National Natural Science Foundation of China [2127318, 21621091]
- China Postdoctoral Science Foundation [2018M642571]
- National Found for Fostering Talents of Basic Science [J1310024]
In this study, N, S co-doped bamboo fiber derived carbon has been prepared when K3Fe(CN)(6) and thiourea are selected as graphitization catalysis and dopant, respectively. The derived carbon possesses a large SBET, suitable graphitization degree, excellent conductivity and wettability of electrolyte, and particularly, it exhibits a unique sheet-like microstructure derived from the layer stripping of gas produced by thiourea pyrolysis, and these microstructure features are very beneficial for energy storage. Typically, the derived carbon displays a high specific capacitance of 328 F/g and an acceptable rate capability of 61.3% at 15 A g(-1) in three-electrode systems. Meanwhile, the derived carbon-based cointype symmetric supercapacitors are assembled in an aqueous electrolyte and an ionic liquid electrolyte, respectively, and they all show a considerable synergetic energy-power output performance (21.2 Wh kg(-1) at 454 W kg(-1) in aqueous electrolyte, and 61.6 Wh kg(-1) at 300 W kg (-1) in ionic liquid electrolyte), indicating the potential application of the derived carbon in supercapacitors. (c) 2019 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据