Journal
JOURNAL OF POWER SOURCES
Volume 193, Issue 2, Pages 935-938Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2009.03.073
Keywords
Nanotube; Hydrothermal method; Energy conversion; Supercapacitor; Manganese dioxide
Funding
- Agency for Science, Technology and Research of Singapore [R-284-000-067-597, R-284-000-067-598 (072 133 0044)]
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Single-crystal alpha-MnO2 nanotubes are synthesized by a facile hydrothermal method without the assistance of a template, a surfactant and heat-treatment. The single-crystal alpha-MnO2 nanotube electrode possesses a high specific capacitance with a good power capability. The excellent pseudo-capacitive properties are attributed to a nanotubular microstructure and a large tunnel cavity in the alpha-MnO2 crystal structure. Single-crystal alpha-MnO2 nanotubes with good electrochemical performance can be a promising candidate as superrapacitor materials. (C) 2009 Elsevier B.V. All rights reserved.
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