文献类型：期刊文献

英文题名：Flute type micropores activated carbon from cotton stalk for high performance supercapacitors

作者：Tian, Xun[1,2];Ma, Hongru[1];Li, Zhe[1];Yan, Shaocun[1];Ma, Lei[2];Yu, Feng[1];Wang, Gang[1];Guo, Xuhong[1,3];Ma, Yanqing[1,2];Wong, Chingping[4,5]

机构：[1]Shihezi Univ, Sch Chem & Chem Engn, Engn Res Ctr Mat Oriented Chem Engn Xinjiang Bing, Key Lab Green Proc Chem Engn XinJiang Bingtuan, Shihezi 832003, Peoples R China;[2]Tianjin Univ, Tianjin Int Ctr Nanoparticles & Nanosyst, Tianjin 300072, Peoples R China;[3]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[4]Chinese Univ Hong Kong, Dept Elect Engn, Shatian, Hong Kong, Peoples R China;[5]Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

年份：2017

卷号：359

起止页码：88

外文期刊名：JOURNAL OF POWER SOURCES

收录：;EI(收录号：20172103694855);WOS:【SCI-EXPANDED(收录号:WOS:000403548200012)】；

基金：This work was financially supported by Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT, No. IRT1161), Program of Science and Technology Innovation Team in Bingtuan (No 2011CC001), and the National Natural Science Foundation of China (No. 21263021).

语种：英文

外文关键词：Flute type micropores activated carbon; Supercapacitors; Cotton stalk

摘要：Flute type micropores activated carbon (FTMAC) has been successfully obtained from cotton stalk via KOH-chemical activation method. The synthesized carbon material exhibits an ordered pore structure with high specific surface area of 1964.46 m(2) g(-1) and pore volume of 1.03 m(3) g(-1). The assembled FTMAC-based electrode delivers a high specific capacitance of 254 F g(-1) at a current density of 0.2 A g(-1) in 1 M H2SO4 aqueous electrolyte. It still can maintain 221 Fg(-1) at a current density of 10 Ag-1, demonstrating a good rate capacity (87% retention), as well as long cyclic stability of 96% capacitance retention after 10000 charging and discharging cycles at current density of 1 A g(-1). Moreover, the symmetric supercapacitor can deliver a high energy density of 18.14Wh kg(-1)1 and a power density of 450.37Wkg(-1) which is operated in the voltage range of 0-1.8 V. (C) 2017 Elsevier B.V. All rights reserved.