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Electrochemical Capacitance of a Nanoporous Composite of Carbon Nanotubes and Polypyrrole
Abstract
This work reports the supercapacitive properties of electrochemically grown composite films of multiwalled carbon nanotubes (MWNT) and polypyrrole (PPy), a conducting polymer. Scanning electron microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy revealed that the nanoporous three-dimensional arrangement of PPy-coated MWNTs in these films facilitated improved electron and ion transfer relative to pure PPy films. The low-frequency capacitance was measured for films of varying thickness, revealing specific capacitances per mass ( C mass ) and geometric area ( C area ) as high as 192 F g - 1 and 1.0 F cm - 2, respectively. Rates of charge and discharge about an order of magnitude faster than similarly prepared pure PPy films were also observed.
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Cited by
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Su, F., Poh, C. K., Chen, J. S., Xu, G., Wang, D., Li, Q., Lin, J., & Lou, X. W. (2011) · Energy Environ. Sci. · doi:10.1039/c0ee00277a · Cited by 916
Carbon Nanotube−Inorganic Hybrids
Eder, D. (2010) · Chemical Reviews · doi:10.1021/cr800433k · Cited by 819
Carbon nanotube coating improves neuronal recordings
Keefer, E. W., Botterman, B. R., Romero, M. I., Rossi, A. F., & Gross, G. W. (2008) · Nature Nanotechnology · doi:10.1038/nnano.2008.174 · Cited by 721
Flexible and Weaveable Capacitor Wire Based on a Carbon Nanocomposite Fiber
Ren, J., Bai, W., Guan, G., Zhang, Y., & Peng, H. (2013) · Advanced Materials · doi:10.1002/adma.201302498 · Cited by 478
High power density supercapacitor electrodes of carbon nanotube films by electrophoretic deposition
Du, C., & Pan, N. (2006) · Nanotechnology · doi:10.1088/0957-4484/17/21/005 · Cited by 382
Metadata
- Authors
- Hughes, M., Chen, G. Z., Shaffer, M. S. P., Fray, D. J., & Windle, A. H.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-02-21
- Volume
- 14
- Issue
- 4
- Pages
- 1610-1613
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2095290715
- Cited by
- 592
- References
- 0
- FWCI
- 12.21
- Type
- journal article
- Language
- en
- Open access
- closed
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- Hughes, M., Chen, G. Z., Shaffer, M. S. P., Fray, D. J., & Windle, A. H. (2002). Electrochemical Capacitance of a Nanoporous Composite of Carbon Nanotubes and Polypyrrole. Chemistry of Materials. https://doi.org/10.1021/cm010744r
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
