journal article·2012-04

Effect of electrochemical oxidation on carbon nanotube electrodes of electric double layer capacitors

YingJie Qiao, ChenSha Li, XingJuan Chen, CaiShan Jiao

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Abstract

Electrochemical oxidation of the carbon nanotube (CNT) polarizable electrodes of electric double layer capacitors (EDLCs) was studied. It indicated that electrochemical oxidation elevated the available surface area of the electrodes and introduced some kinds of functional group on the CNT surfaces. The specific capacitances of the polarizable electrodes with organic electrolyte could be enhanced from 22.4 F g−1 to 78.2 F g−1 after electrolysis oxidization. The enhancement of the specific capacitance depends on the extent of electrochemical oxidation. Using acidic electrolyte for electrochemical oxidation has different effects on modifying the performances of the CNT polarizable electrodes compared to using basic electrolyte.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Supercapacitor Materials and Fabrication · Conducting polymers and applications · Carbon Nanotubes in Composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (28)

Show source-provided references
1. Christen T, Carlen M W. Theory of Ragone plots. J Power Sources, 2000, 91(2): 210–21610.1016/S0378-7753(00)00474-2 ↗
2. Conway B E. Electrochemical Supercapacitors: Scientific Fundamentals and Technological Applications. New York: Kluwer Academic Publisher, 199910.1007/978-1-4757-3058-6 ↗
3. Inagaki M, Konno H, Tanaike O, et al. Carbon materials for electrochemical capacitors. J Power Sources, 2010, 195(SI24): 7880–790310.1016/j.jpowsour.2010.06.036 ↗
4. Nakamura M, Nakanishi M, Yamamoto K. Influence of physical properties of activated carbons on characteristics of electric double-layer capacitors. J Power Sources, 1996, 60(2): 225–23110.1016/S0378-7753(96)80015-2 ↗
5. Issi J, Langer L, Heremans J, et al. Electronic-properties of carbon nanotubes-experimental results. Carbon, 1995, 33(7): 941–94810.1016/0008-6223(95)00023-7 ↗
6. Ma R Z, Liang J, Wei B Q, et al. Study of electrochemical capacitors utilizing carbon nanotube electrodes. J Power Sources, 1999, 84(1): 126–12910.1016/S0378-7753(99)00252-9 ↗
7. Zhang B, Liang J, Xu C L, et al. Electric double-layer capacitors using carbon nanotube electrodes and organic electrolyte. Mater Lett, 2001, 51(6): 539–54210.1016/S0167-577X(01)00352-4 ↗
8. Obreja V V N. On the performance of supercapacitors with electrodes based on carbon nanotubes and carbon activated material — A review. Physica E, 2008, 40(7): 2596–260510.1016/j.physe.2007.09.044 ↗
9. Saito R, Fujita M, Dresselhaus G, et al. Electronic-structure of chiral graphene tubules. Appl Phys Lett, 1992, 60(18): 2204–220610.1063/1.107080 ↗
10. Dresselhaus M S, Dresselhaus G, Eklund P C. Science of Fullerenes and Carbon Nanotubes. New York: Academic Press, 1996
11. Richner R, Muller S, Wokaun A. Grafted and crosslinked carbon black as an electrode material for double layer capacitors. Carbon, 2002, 40(3): 307–31410.1016/S0008-6223(01)00100-2 ↗
12. Mommas T, Liu X, Osaka T, et al. Electrochemical modification of active carbon fiber electrode and its application to double-layer capacitor. J Power Sources, 1996, 60(2): 249–25310.1016/S0378-7753(96)80018-8 ↗
13. Sheveleva I V, Zemskova L A, Zheleznov S V, et al. Effect of modification on electrochemical and sorption properties of woven carbon materials. Russ J Appl Chem, 2007, 80(6): 924–92910.1134/S1070427207060146 ↗
14. Yue Z R, Jiang W, Wang L, et al. Surface characterization of electrochemically oxidized carbon fibers. Carbon, 1999, 37(11): 1785–179610.1016/S0008-6223(99)00047-0 ↗
15. Sun Y, Webley P A. Preparation of activated carbons from corncob with large specific surface area by a variety of chemical activators and their application in gas storage. Chem Eng J, 2010, 162(3): 883–89210.1016/j.cej.2010.06.031 ↗
16. Qu D Y, Shi H. Studies of activated carbons used in double-layer capacitors. J Power Sources, 1998, 74(1): 99–10710.1016/S0378-7753(98)00038-X ↗
17. Antony R, Pillai C K S. Synthesis and thermal characterization of chemically-modified phenolic resins. J Appl Polym Sci, 1994, 54(4): 429–43810.1002/app.1994.070540403 ↗
18. Park Y S, Choi Y C, Kim K S, et al. High yield purification of multiwalled carbon nanotubes by selective oxidation during thermal annealing. Carbon, 2001, 39(5): 655–66110.1016/S0008-6223(00)00152-4 ↗
19. He F, Wang M Z. Carbon Fibers and Their Composite Materials (in Chinese). Beijing: Science Press, 1995
20. Hasegawa G, Aoki M, Kanamori K, et al. Monolithic electrode for electric double-layer capacitors based on macro/meso/microporous S-containing activated carbon with high surface area. J Mater Chem, 2011, 21(7): 2060–206310.1039/c0jm03793a ↗
21. Figueiredo J L, Pereira M F R, Freitas M M A. Modification of the surface chemistry of activated carbons. Carbon, 1999, 37(9): 1379–138910.1016/S0008-6223(98)00333-9 ↗
22. Zoltan D, Bela P, Jozsef N J. Possible coupling reactions of functional silanes and polypropylene. Polymer, 1999, 40(7): 1763–177310.1016/S0032-3861(98)00396-6 ↗
23. Jia Z J, Wang Z Y, Liang J, et al. Production of short multi-walled carbon nanotubes. Carbon, 1999, 37(6): 903–90610.1016/S0008-6223(98)00229-2 ↗
24. Peigney A, Laurent C, Flahaut E, et al. Specific surface area of carbon nanotubes and bundles of carbon nanotubes. Carbon, 2001, 39(4): 507–514.10.1016/S0008-6223(00)00155-X ↗
25. Hsieh C T, Teng H H. Influence of oxygen treatment on electric double-layer capacitance of activated carbon fabrics. Carbon, 2002, 40(5): 667–67410.1016/S0008-6223(01)00182-8 ↗
26. Lin C C, Yen C C. RF oxygen plasma treatment of activated carbon electrodes for electrochemical capacitors. J Appl Electrochem, 2007, 37(7): 813–81710.1007/s10800-007-9316-2 ↗
27. Song H K, Jung Y H, Lee K H, et al. Electrochemical impedance spectroscopy of porous electrodes: the effect of pore size distribution. Electrochim Acta, 1999; 44(20): 3513–351910.1016/S0013-4686(99)00121-8 ↗
28. Segalini J, Daffos B, Taberna P L, et al. Qualitative Electrochemical Impedance Spectroscopy study of ion transport into sub-nanometer carbon pores in Electrochemical Double Layer Capacitor electrodes. Electrochim Acta, 2010, 55(SI 25): 7489–749410.1016/j.electacta.2010.01.003 ↗