Issue 30, 2013
From the journal:

Journal of Materials Chemistry A

Chain-like NiCo2O4nanowires with different exposed reactive planes for high-performance supercapacitors†

Rujia Zou,a   Kaibing Xu,a   Teng Wang,a   Guanjie He,a   Qian Liu,a   Xijian Liu,a   Zhenyu Zhangb  and  Junqing Hu*a  

* Corresponding authors

a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
E-mail: hu.junqing@dhu.edu.cn

b Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China

Abstract

Faceted crystals with different exposed planes have attracted intensive investigations for applications. Herein, we report a facile hydrothermal and thermal decomposition process which is successfully developed to grow 3D NiCo2O4 micro-spheres constructed with radial chain-like NiCo2O4 nanowires with different exposed crystal planes. When applied as electrode materials for supercapacitors, chain-like NiCo2O4 nanowires exhibit excellent electrochemical performances in supercapacitors with high specific capacitance (1284 F g−1 at 2 A g−1), good rate capability, and excellent cycling stability (only 2.5% loss after 3000 cycles). In situ electrical properties clearly illustrated that the chain-like nanowires with different exposed crystal planes exhibit excellent electronic conductivity, which shows that the electronic conductivity plays an essential role for electrode materials in supercapacitors. So, high electronic conductivity chain-like NiCo2O4 nanowires with different exposed crystal planes can form a competitive electrode material for next generation supercapacitors.

Graphical abstract: Chain-like NiCo2O4 nanowires with different exposed reactive planes for high-performance supercapacitors

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Article information

DOI
https://doi.org/10.1039/C3TA11361B
Article type
Paper
Submitted
04 Apr 2013
Accepted
09 May 2013
First published
09 May 2013

J. Mater. Chem. A, 2013,1, 8560-8566

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Chain-like NiCo2O4 nanowires with different exposed reactive planes for high-performance supercapacitors

R. Zou, K. Xu, T. Wang, G. He, Q. Liu, X. Liu, Z. Zhang and J. Hu, J. Mater. Chem. A, 2013, 1, 8560 DOI: 10.1039/C3TA11361B

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