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Supercapacitor electrodes from multiwalled carbon nanotubes
Abstract
Electrochemical characteristics of supercapacitors built from multiwalled carbon nanotubes electrodes have been investigated and correlated with microtexture and elemental composition of the materials. Capacitance has been estimated by cyclovoltammetry at different scan rates from 1 to 10 mV/s, galvanostatic discharge, and impedance spectroscopy in the frequency range from 100 kHz to 1 mHz. The presence of mesopores due to the central canal and/or entanglement is at the origin of an easy accessibility of the ions to the electrode/electrolyte interface for charging the electrical double layer. Pure electrostatic attraction of ions as well as quick pseudofaradaic reactions have been detected upon varying surface functionality. The values of specific capacitance varied from 4 to 135 F/g, depending on the type of nanotubes or/and their posttreatments. Even with moderate specific surface area (below 470 m2/g), due to their accessible mesopores, multiwalled carbon nanotubes represent attractive materials for supercapacitors as compared to the best activated carbons.
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Cited by
Energy storage in electrochemical capacitors: designing functional materials to improve performance
Hall, P. J., Mirzaeian, M., Fletcher, S. I., Sillars, F. B., Rennie, A. J. R., Shitta-Bey, G. O., Wilson, G., Cruden, A., & Carter, R. (2010) · Energy & Environmental Science · doi:10.1039/c0ee00004c · Cited by 1,162
Electrochemical storage of energy in carbon nanotubes and nanostructured carbons
Frackowiak, E., & Béguin, F. (2002) · Carbon · doi:10.1016/s0008-6223(02)00045-3 · Cited by 1,083
Self-citationNanostructured carbon for energy storage and conversion
Candelaria, S. L., Shao, Y., Zhou, W., Li, X., Xiao, J., Zhang, J.-G., Wang, Y., Liu, J., Li, J., & Cao, G. (2012) · Nano Energy · doi:10.1016/j.nanoen.2011.11.006 · Cited by 975
Supercapacitors: Review of Materials and Fabrication Methods
Vangari, M., Pryor, T., & Jiang, L. (2013) · Journal of Energy Engineering · doi:10.1061/(asce)ey.1943-7897.0000102 · Cited by 608
Kate, R. S., Khalate, S. A., & Deokate, R. J. (2018) · Journal of Alloys and Compounds · doi:10.1016/j.jallcom.2017.10.262 · Cited by 574
Metadata
- Authors
- Frackowiak, E., Metenier, K., Bertagna, V., & Beguin, F.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2000-10-09
- Volume
- 77
- Issue
- 15
- Pages
- 2421-2423
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1989723802
- Cited by
- 722
- References
- 0
- FWCI
- 8.54
- Type
- journal article
- Language
- en
- Open access
- closed
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- Frackowiak, E., Metenier, K., Bertagna, V., & Beguin, F. (2000). Supercapacitor electrodes from multiwalled carbon nanotubes. Applied Physics Letters. https://doi.org/10.1063/1.1290146
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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