文献类型：期刊文献

英文题名：Synthesis of micro- and meso-porous carbon derived from cellulose as an electrode material for supercapacitors

作者：Tian, Xun[1];Zhu, Shan[2];Peng, Jun[1];Zuo, Yongtao[1];Wang, Gang[1];Guo, Xuhong[1,3];Zhao, Naiqin[2];Ma, Yanqing[1,2];Ma, Lei[4]

机构：[1]Shihezi Univ, Sch Chem & Chem Engn, Key Lab Green Proc Chem Engn XinJiang Bingtuan, Engn Res Ctr Mat Oriented Chem Engn Xinjiang Bing, Shihezi 832003, Peoples R China;[2]Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composites & Funct Mat, Tianjin 300350, Peoples R China;[3]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[4]Tianjin Univ, Tianjin Int Ctr Nanoparticles & Nanosyst, Tianjin 300072, Peoples R China

年份：2017

卷号：241

起止页码：170

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20171803636028);WOS:【SCI-EXPANDED(收录号:WOS:000403026700017)】；

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, U1303291).

语种：英文

外文关键词：Electrolytes - Cellulose - Capacitance - Microporosity - Structural optimization - Carbon - Electrochemical electrodes - Porous materials

摘要：Cellulose has been explored as a tentative renewable carbon source to convert into micro-and mesoporous carbon (MMC) via carbonizing cellulose aerogel at a temperature of 700 degrees C without further activation. The obtained MMC materials based on cellulose possess a specific surface area of 646 m(2) g (1), a pore volume of 0.4403 m(3) g (1), with an optimal pore structure that consists of the micropores in average size of 1.49 nm and the mesopores in the range of 2.25 similar to 3.32 nm. A two-electrode symmetric supercapacitor based on the MMC materials exhibits a comparable high electrochemical performance with a large capacitance (up to 160 Fg (1) at 0.2 Ag (1)), an high energy density of 17.81 Wh kg (1) at a power density of 180.11W kg (1) in the voltage range of 0 V to 1.8 V. The mesoporous can provide a good channel to further facilitate the electrolyte ion penetrating inner pores, while the microporous can store more electrolyte ions. The above cooperative effect of MMC is the key to the high-performance of the supercapacitors. (C) 2017 Elsevier Ltd. All rights reserved.