Issue 7, 2013
From the journal:

Energy & Environmental Science

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

Ming-Jay Deng,*a   Pei-Jung Ho,b   Cheng-Zhao Song,b   Shin-An Chen,ac   Jyh-Fu Lee,a   Jin-Ming Chen*a  and  Kueih-Tzu Lu*a  

* Corresponding authors

a National Synchrotron Radiation Research Center, Hsinchu, Taiwan
E-mail: deng.mj@nsrrc.org.tw, jmchen@nsrrc.org.tw, ktlu@nsrrc.org.tw
Fax: +886-3-578-3813
Tel: +886-3-578-0281

b Department of Applied Science, National Hsinchu University of Education, Hsinchu, Taiwan

c Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan

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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Article information

DOI
https://doi.org/10.1039/C3EE40598B
Article type
Paper
Submitted
21 Feb 2013
Accepted
02 May 2013
First published
30 May 2013

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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