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Preparation and Characterization of Aligned Carbon Nanotube–Ruthenium Oxide Nanocomposites for Supercapacitors
Abstract
A novel type of ruthenium oxide (RuO 2)‐modified multi‐walled carbon nanotube (MWNT) nanocomposite electrode (RuO 2/MWNT) for supercapacitors has been prepared. The nanocomposites were formed by depositing Ru by magnetic‐sputtering in an Ar/O 2 atmosphere onto MWNTs, which were synthesized on Ta plates by chemical vapor deposition. Cyclic voltammetry, chronopotentiometry, and electrochemical impedance measurements were applied to investigate the performance of the RuO 2/MWNT nanocomposite electrodes. The capacitance of the MWNT electrodes in 1.0 M H 2 SO 4 is significantly increased from 0.35 to 16.94 mF cm−2 by modification with RuO 2. The RuO 2 film on the surface of the nanotubes is composed of small crystal grains with tilted bundle‐like microstructures, as observed by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The results demonstrate a promising route to prepare RuO 2/MWNT‐based double‐layer supercapacitors.
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Cited by
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Zhai, Y., Dou, Y., Zhao, D., Fulvio, P. F., Mayes, R. T., & Dai, S. (2011) · Advanced Materials · doi:10.1002/adma.201100984 · Cited by 2,964
Carbon Nanotube−Inorganic Hybrids
Eder, D. (2010) · Chemical Reviews · doi:10.1021/cr800433k · Cited by 819
Chen, P., Chen, H., Qiu, J., & Zhou, C. (2010) · Nano Research · doi:10.1007/s12274-010-0020-x · Cited by 435
Coaxial PANI/TiN/PANI nanotube arrays for high-performance supercapacitor electrodes
Peng, X., Huo, K., Fu, J., Zhang, X., Gao, B., & Chu, P. K. (2013) · Chemical Communications · doi:10.1039/c3cc45997g · Cited by 105
Metadata
- Authors
- Ye, J., Cui, H. F., Liu, X., Lim, T. M., Zhang, W., & Sheu, F.
- Venue
- Small
- Publisher
- Wiley
- Published
- 2005-03-31
- Volume
- 1
- Issue
- 5
- Pages
- 560-565
- ISSN
- 1613-6810 (ISSN-L)
- 1613-6829
- OpenAlex
- W2155464372
- Cited by
- 233
- References
- 0
- FWCI
- 6.32
- Type
- journal article
- Language
- en
- Open access
- closed
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- Ye, J., Cui, H. F., Liu, X., Lim, T. M., Zhang, W., & Sheu, F. (2005). Preparation and Characterization of Aligned Carbon Nanotube–Ruthenium Oxide Nanocomposites for Supercapacitors. Small. https://doi.org/10.1002/smll.200400137
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