pH-Regulated Synthesis of Multi-Shelled Manganese Oxide Hollow Microspheres as Supercapacitor Electrodes Using Carbonaceous Microspheres as Templates

Jiangyan Wang; Hongjie Tang; Hao Ren; Ranbo Yu; Jian Qi; Dan Mao; Huijun Zhao; Dan Wang

doi:10.1002/advs.201400011

pH-Regulated Synthesis of Multi-Shelled Manganese Oxide Hollow Microspheres as Supercapacitor Electrodes Using Carbonaceous Microspheres as Templates

Adv Sci (Weinh). 2014 Dec 10;1(1):1400011. doi: 10.1002/advs.201400011. eCollection 2014 Dec.

Authors

Jiangyan Wang¹, Hongjie Tang¹, Hao Ren², Ranbo Yu², Jian Qi³, Dan Mao³, Huijun Zhao⁴, Dan Wang⁵

Affiliations

¹ State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences No. 1 Beiertiao, Zhongguancun Beijing 100190 P. R. China; University of Chinese Academy of Sciences No.19A Yuquan Road Beijing 100049 P. R. China.
² Department of Physical Chemistry, School of Metallurgical and Ecological Engineering University of Science and Technology Beijing No. 30, Xueyuan Road Haidian District Beijing 100083 P. R. China.
³ State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences No. 1 Beiertiao, Zhongguancun Beijing 100190 P. R. China.
⁴ Centre for Clean Environment and Energy Gold Coast Campus Griffith University Queensland 4222 Australia.
⁵ State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences No. 1 Beiertiao, Zhongguancun Beijing 100190 P. R. China; Centre for Clean Environment and Energy Gold Coast Campus Griffith University Queensland 4222 Australia.

Abstract

Multi-shelled Mn₂O₃ hollow microspheres have been achieved through a pH-regulated method and used as supercapacitor electrodes. The designed unique architecture allows efficient use of pseudo-capacitive Mn₂O₃ nanomaterials for charge storage with facilitated transport for both ions and electrons, rendering them high specific capacitance, good rate capability, and remarkable cycling performance.

Keywords: hard‐templated method; manganese oxide; multi‐shelled hollow microsphere; pH‐regulated; supercapacitor.