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Issue 8, 2016
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Synthesis of multi-shelled MnO2 hollow microspheres via an anion-adsorption process of hydrothermal intensification

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Abstract

In this study, multi-shelled manganese oxide hollow microspheres with controlled valence were successfully synthesized by varying the Mn-precursor and using an anion-adsorption process for hydrothermal intensification. Used as the supercapacitor electrode material, the multi-shelled MnO2 hollow microspheres achieved superior specific capacitance (1457 F gāˆ’1 at the discharge current density of 0.5 A gāˆ’1) and excellent cycling stability (91.2% retention of the initial capacitance after 4000 cycles), benefiting from the superiorities of these unique hierarchical structures such as increased active sites, shortened ion and electron transport lengths, better contact between the electrolyte and active materials, as well as better protection of interior shells by the exterior shell.

Graphical abstract: Synthesis of multi-shelled MnO2 hollow microspheres via an anion-adsorption process of hydrothermal intensification

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Article information


Submitted
08 Apr 2016
Accepted
26 May 2016
First published
31 May 2016

Inorg. Chem. Front., 2016,3, 1065-1070
Article type
Research Article

Synthesis of multi-shelled MnO2 hollow microspheres via an anion-adsorption process of hydrothermal intensification

M. Chen, J. Wang, H. Tang, Y. Yang, B. Wang, H. Zhao and D. Wang, Inorg. Chem. Front., 2016, 3, 1065
DOI: 10.1039/C6QI00083E

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