ISSN: 0256-1115 (print version) ISSN: 1975-7220 (electronic version)
Copyright © 2024 KICHE. All rights reserved

Articles & Issues

Language
English
Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received June 2, 2010
Accepted July 19, 2010
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.

All issues

Preparation and performance of cobalt-doped carbon aerogel for supercapacitor

School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Kwanak-gu, Seoul 151-744, Korea 1Department of Chemical Engineering,, Myongji University, Yongin 449-728, Korea 2Department of Chemical Engineering, Inha University, Incheon 402-751, Korea 3Samwha Capacitor Co., Ltd, Yongin 449-884, Korea
inksong@snu.ac.kr
Korean Journal of Chemical Engineering, February 2011, 28(2), 492-496(5), 10.1007/s11814-010-0380-7
downloadDownload PDF

Abstract

Carbon aerogels were prepared by polycondensation of resorcinol with formaldehyde in ambient conditions. The effect of resorcinol-to-catalyst ratio (R/C ratio) on volume shrinkage, BET surface area, and electrochemical property was investigated by changing R/C ratio from 50 to 2000. Carbon aerogel prepared at R/C ratio of 500 showed less than 2% of volume shrinkage and the highest BET surface area (706 m2/g). Specific capacitance of carbon aerogel prepared at R/C ratio of 500 was found to be 81 F/g in 1M H2SO4 electrolyte. Cobalt-doped carbon aerogels were then prepared by an impregnation method with a variation of cobalt content, and their performance was investigated. Among the samples prepared, 7 wt% cobalt-doped carbon aerogel showed the highest capacitance (100 F/g) and the most stable cyclability. The enhanced capacitance of cobalt-doped carbon aerogel was attributed to the faradaic redox reactions of cobalt oxide.

References

Burke A, J. Power Sources, 91(1), 37 (2000)
Moreno-Castilla C, Maldonado-Hodar FJ, Carbon., 43, 455 (2005)
Pandolfo AG, Hollenkamp AF, J. Power Sources, 157(1), 11 (2006)
Jayalakshmi M, Balasubramanian K, Int. J. Electrochem. Sci., 3, 1196 (2008)
Zhang Y, Feng H, Wu X, Wang L, Zhang A, Xia T, Dong H, Li X, Zhang L, Int. J. Hydrogen Energy., 34, 4889 (2009)
Pekala RW, J. Mater. Sci., 24, 3221 (1989)
Kim HJ, Kim JH, Kim WI, Suh DJ, Korean J. Chem. Eng., 22(5), 740 (2005)
Mayer ST, Pekala RW, Kaschmitter JL, J. Electrochem.Soc., 140, 446 (1993)
Fricke J, Lu X, Caps R, Alviso CT, Pekala RW, J. Non-Cryst. Solids., 8, 226 (1995)
Pekala RW, US Patent, 4,873,218 (1989)
Probstle H, Wiener M, Fricke J, J. Porous Mat., 10, 213 (2003)
Frackowiak E, Beguin F, Carbon., 39, 937 (2001)
Wu D, Fu R, Zhang S, Dresselhaus MS, Dresselhaus G, Carbon., 42, 22033 (2004)
Kim SJ, Hwang SW, Hyun SH, J. Mater. Sci., 40(3), 725 (2005)
Saliger R, Bock V, Petricevic R, Tillotson T, Geis S, Fricke J, J. Non-Cryst. Solids., 221, 144 (1997)
Zanto EJ, Al-Muhtaseb SA, Ritter JA, Ind. Eng. Chem. Res., 41(13), 3151 (2002)
Wei YZ, Fang B, Iwasa S, Kumagai M, J. Power Sources, 141(2), 386 (2005)
Zheng JP, Electrochem Solid State Lett., 2, 359 (1999)
Hu CC, Huang YH, Chang KH, J. Power Sources, 108(1-2), 117 (2002)
Yoon S, Lee C, Oh SM, Park YK, Choi WC, J. Non-Cryst. Solids., 355, 252 (2009)
Wei TY, Chen CH, Chang KH, Lu SY, Hu CC, Chem. Mater., 21, 3228 (2009)
Kim IH, Kim KB, J. Electrochem. Soc., 153, 383 (2006)
Al-Muhtaseb SA, Ritter JA, Adv. Mater., 15(2), 101 (2003)
Hwang SW, Hyun SH, J. Non-Cryst. Solids., 347, 238 (2004)
Li J, Wang XY, Huang QH, Gamboa S, Sebastian PJ, J. Power Sources, 158(1), 784 (2006)
Lin C, Ritter JA, Carbon., 35, 1271 (1997)
Zhang L, Liu H, Wang M, Chen L, Carbon., 45, 1439 (2007)
Reichenauer G, Fricke J, Li W, Carbon., 40, 2955 (2002)
Liu XM, Zhang YH, Zhang XG, Fu SY, Electrochim. Acta, 49(19), 3137 (2004)

The Korean Institute of Chemical Engineers. F5, 119, Anam-ro, Seongbuk-gu, 233 Spring Street Seoul 02856, South Korea.
TEL. No. +82-2-458-3078FAX No. +82-507-804-0669E-mail : kiche@kiche.or.kr

Copyright (C) KICHE.all rights reserved.

- Korean Journal of Chemical Engineering 상단으로