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Issue 7, 2013
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Fabrication of Mn/Mn oxide core–shell electrodes with three-dimensionally ordered macroporous structures for high-capacitance supercapacitors

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Abstract

Three-dimensionally ordered macroporous (3DOM) metallic Mn films have been prepared with ordered polystyrene (PS) templates on electrodeposition from an ionic liquid (IL). A 3DOM Mn core–Mn oxide shell film was prepared on anodizing a 3DOM Mn film in KCl aqueous solution. The varied anodization courses were confirmed to cause variations of the material characteristics of the prepared 3DOM Mn/Mn oxide electrodes and thereby in their pseudocapacitive performance. The 3DOM Mn/Mn oxide electrodes anodized with the cyclic voltammetric method showed the most promising specific capacitance, 1200 ± 60 F g−1 (based on the mass of 3DOM Mn/Mn oxides), with a satisfactory rate capability and cycling performance. Such electrodes can be potentially applied for lithium batteries and supercapacitors.

Graphical abstract: Fabrication of Mn/Mn oxide core–shell electrodes with three-dimensionally ordered macroporous structures for high-capacitance supercapacitors

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Publication details

The article was received on 21 Feb 2013, accepted on 02 May 2013 and first published on 30 May 2013


Article type: Paper
DOI: 10.1039/C3EE40598B
Citation: Energy Environ. Sci., 2013,6, 2178-2185
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    Fabrication of Mn/Mn oxide core–shell electrodes with three-dimensionally ordered macroporous structures for high-capacitance supercapacitors

    M. Deng, P. Ho, C. Song, S. Chen, J. Lee, J. Chen and K. Lu, Energy Environ. Sci., 2013, 6, 2178
    DOI: 10.1039/C3EE40598B

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