[O.sub.4]/worm-like mesoporous carbon synthesized via a microwave method for supercapacitors

A quick and facile microwave method has been employed to prepare [Mn.sub.3][O.sub.4]/worm-like mesoporous carbon ([Mn.sub.3][O.sub.4]-MC) composites. Structural and morphological characterizations of worm-like mesoporous carbon and [Mn.sub.3][O.sub.4]-MC composites have been carried out using X-ray...

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Bibliographic Details
Published in:Journal of materials science 2011-05, Vol.46 (10), p.3337
Main Authors: Zhou, Tianxiang, Mo, Shanshan, Zhou, Shuangli, Zou, Wujun, Liu, Yingliang, Yuan, Dingsheng
Format: Article
Language:English
Subjects:
Analysis
Capacitors
Electric properties
Methods
Oxides
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Summary:A quick and facile microwave method has been employed to prepare [Mn.sub.3][O.sub.4]/worm-like mesoporous carbon ([Mn.sub.3][O.sub.4]-MC) composites. Structural and morphological characterizations of worm-like mesoporous carbon and [Mn.sub.3][O.sub.4]-MC composites have been carried out using X-ray diffraction, transmission electron microscopy, [N.sub.2] adsorption-desorption, and electrochemical measurement. Cyclic voltammograms demonstrate that the [Mn.sub.3][O.sub.4]-MC composites perform improved capacitive behavior at the range of -0.8 ~0.2 V (vs. Hg/HgO electrode) with reversibility. The [Mn.sub.3][O.sub.4]-MC composite electrode possesses an enhanced specific capacitance of 266 F [g.sup.-1] at a sweep rate of 1 mV [s.sup.-1].
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-010-5221-x