Physical and electrochemical characterization of CuO-doped activated carbon in ionic liquid

被引：15
|
作者：
Sun, Guohua [1 ,2 ]
Li, Kaixi [1 ]
Sun, Chenggong [3 ]
Liu, Yue [1 ,2 ]
He, Hongwei [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Shanxi, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[3] Univ Nottingham, Sch Chem Environm & Min Engn, Nottingham NG7 2RD, England
来源：
ELECTROCHIMICA ACTA | 2010年 / 55卷 / 08期
关键词：
CuO-doped activated carbon; Ionic liquid; Redox reaction; Average specific capacitance; DOUBLE-LAYER CAPACITORS; LITHIUM ION; ELECTROLYTE; SUPERCAPACITORS; TETRAFLUOROBORATE; PERFORMANCE; SOLVENT; VISCOSITY; BEHAVIOR; CELLS;
D O I：
10.1016/j.electacta.2009.12.049
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A series of CuO-doped activated carbons (CDACs) were prepared by chemical deposition. The electrochemical behavior of CDACs was investigated in electrochemical capacitors based on ionic liquid 1-ethyl-3-methylimidazolium thiocyanate ([EMlm]SCN) as electrolyte. The results indicated that a diffusion-controlling, reversible redox reaction of CuO particles happened in ionic liquid and porous carbon. When the amount of CuO-doped activated carbon with a specific surface area of 2460 m(2) g(-1) reached 2%, the single electrode average specific capacitance can reach the maximal value of 210 F g(-1), about 20% higher than the one used pure activated carbon as electrode material. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2667 / 2672
页数：6
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