Effects of Parameters for Preparing Carbon Nanotubes on the Capacitances of Manganese-Cobalt-Zinc Oxide/Carbon Nanotube Electrodes
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- LIN Chuen-Chang
- Department of Chemical & Materials Engineering, National Yunlin University of Science and Technology
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- HO Yu-Sheng
- Department of Chemical & Materials Engineering, National Yunlin University of Science and Technology
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Abstract
A Co (catalyst)-Ti-coated silicon foil on which carbon nanotubes (CNTs) are directly grown by thermal chemical vapor deposition (CVD) with/without H2 and using different temperatures/volume flow rates of NH3 is optionally pretreated with hydrogen-plasma. Thereafter the CNTs are treated with nitrogen-plasma, and a manganese-cobalt-zinc oxide film is deposited on the CNTs by radio frequency sputtering. For the CNT electrode, at the 100th cycle of potential cycling, its specific capacitance at a CNT growing temperature of 750°C is higher than those at 700 or 800°C and the higher the NH3 flow rate while growing CNTs, the higher the specific capacitance. Furthermore, the specific capacitance of the manganese-cobalt-zinc oxide/CNT electrode for the CNTs grown in 50 cm3 min−1 NH3 is higher than that without NH3.
Journal
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- Electrochemistry
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Electrochemistry 81 (4), 239-245, 2013
The Electrochemical Society of Japan
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Details 詳細情報について
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- CRID
- 1390282681474297600
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- NII Article ID
- 10031139477
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- NII Book ID
- AN00151637
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- ISSN
- 21862451
- 13443542
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- NDL BIB ID
- 024383577
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Allowed