An asymmetric supercapacitor with anthraquinone and dihydroxybenzene modified carbon fabric electrodes

被引:120
作者
Algharaibeh, Zaher [1 ]
Pickup, Peter G. [1 ]
机构
[1] Mem Univ Newfoundland, Dept Chem, St John, NF A1B 3X7, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Supercapacitor; Chemically modified carbon; Anthraquinone; Dihydroxybenzene; Energy density; ELECTROCHEMICAL CAPACITORS; OXIDE SUPERCAPACITORS; POWER DENSITIES; PERFORMANCE; ENERGY; ELECTROLYSIS; CATECHOL; ACID;
D O I
10.1016/j.elecom.2010.11.036
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
An asymmetric electrochemical capacitor with an enhanced energy density has been constructed by using carbon fabric electrodes modified with complementary functionality; anthraquinone for the negative electrode and 1,2-dihydroxybenezene for the positive electrode. Cyclic voltammetry and constant current discharging were used to evaluate the performance of a supercapacitor with 1 M H2SO4 electrolyte and a Nation separator. Energy densities were found to be double the values obtained for a symmetric device with two unmodified carbon fabric electrodes. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:147 / 149
页数:3
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