Issue 20, 2016
From the journal:

Journal of Materials Chemistry A

Ranunculus flower-like Ni(OH)2@Mn2O3 as a high specific capacitance cathode material for alkaline supercapacitors†

Qian Ren,a   Rongfang Wang,*a   Hui Wang,a   Julian Key,a   Dan J. L. Brett,b   Shan Ji,b   Shibin Yinc  and  Pei Kang Shen*c  

* Corresponding authors

a College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, China
E-mail: wrf38745779@126.com

b EIL, Dept. Chemical Engineering, University College London, London WC1E 7JE, UK

c Collaborative Innovation Center of Renewable Energy Materials (CICREM), Guangxi University, Nanning, China
E-mail: pkshen@gxu.edu.cn

Abstract

A novel core–shell Ni(OH)2@Mn2O3 material is presented that bears a particle morphology of striking resemblance to Ranunculus flower heads. A 7.8 wt% of Mn2O3 content in Ni(OH)2@Mn2O3 resulted in an impressively high specific capacitance of 1219.1 F g−1 at 2 A g−1 in alkaline electrolytes.

Graphical abstract: Ranunculus flower-like Ni(OH)2@Mn2O3 as a high specific capacitance cathode material for alkaline supercapacitors

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Article information

DOI
https://doi.org/10.1039/C6TA02596J
Article type
Communication
Submitted
29 Mar 2016
Accepted
23 Apr 2016
First published
25 Apr 2016

J. Mater. Chem. A, 2016,4, 7591-7595

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Ranunculus flower-like Ni(OH)2@Mn2O3 as a high specific capacitance cathode material for alkaline supercapacitors

Q. Ren, R. Wang, H. Wang, J. Key, D. J. L. Brett, S. Ji, S. Yin and P. Kang Shen, J. Mater. Chem. A, 2016, 4, 7591 DOI: 10.1039/C6TA02596J

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