Anthraquinone modified carbon fabric supercapacitors with improved energy and power densities

被引：128

作者：

Kalinathan, Karunakaran ^{[1
]}

DesRoches, Derrick P. ^{[1
]}

Liu, Xiaorong ^{[1
]}

Pickup, Peter G. ^{[1
]}

机构：

[1] Mem Univ Newfoundland, Dept Chem, St John, NF A1B 3X7, Canada

来源：

JOURNAL OF POWER SOURCES | 2008年 / 181卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

supercapacitor; carbon; anthraquinone; diazonium; chemically modified electrode; power density;

D O I：

10.1016/j.jpowsour.2008.03.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Supercapacitors with improved energy and power densities have been constructed with anthraquinone modified carbon fabric (Spectracarb 2225) as the negative electrode and unmodified carbon fabric as the positive electrode. A Nafion separator and 1 M sulfuric acid electrolyte were employed. The performances of the supercapacitors were characterized by cyclic voltammetry and constant current discharging. Use of the anthraquinone modified electrode as the negative electrode (anode during discharge) in the supercapacitor provides 40% higher average capacitance, 56-86% higher energy density, and improved power duration. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：182 / 185

页数：4

共 13 条

[1] Batteries and ultracapacitors for electric, hybrid, and fuel cell vehicles
Burke, Andrew F.
[J]. PROCEEDINGS OF THE IEEE, 2007, 95 (04) : 806 - 820
[2] Conway B. E., 1999, ELECTROCHEMICAL SUPE
[3] F Allen J Bard L.R., 2001, Electrochemical Methods: Fundamentals and Applications
[4] Carbon materials for the electrochemical storage of energy in capacitors
Frackowiak, E
Béguin, F
[J]. CARBON, 2001, 39 (06) : 937 - 950
[5] Carbon materials for supercapacitor application
Frackowiak, Elzbieta
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (15) : 1774 - 1785
[6] Supercapacitors and electrochemical pulse sources
Huggins, RA
[J]. SOLID STATE IONICS, 2000, 134 (1-2) : 179 - 195
[7] Principles and applications of electrochemical capacitors
Kötz, R
Carlen, M
[J]. ELECTROCHIMICA ACTA, 2000, 45 (15-16) : 2483 - 2498
[8] Combination of redox capacity and double layer capacitance in composite electrodes through immobilization of an organic redox couple on carbon black
Leitner, KW
Gollas, B
Winter, M
Besenhard, JO
[J]. ELECTROCHIMICA ACTA, 2004, 50 (01) : 199 - 204
[9] Requirements for performance characterization of C double-layer supercapacitors: Applications to a high specific-area C-cloth material
Niu, Jianjun
Pell, Wendy G.
Conway, Brian E.
[J]. JOURNAL OF POWER SOURCES, 2006, 156 (02) : 725 - 740
[10] Carbon properties and their role in supercapacitors
Pandolfo, A. G.
Hollenkamp, A. F.
[J]. JOURNAL OF POWER SOURCES, 2006, 157 (01) : 11 - 27

← 1 2 →