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Issue 42, 2014
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NiCo2O4 nanostructure materials: morphology control and electrochemical energy storage

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Abstract

Three types of NiCo2O4 nanostructure, homogeneous NiCo2O4 nanoneedle arrays, heterogeneous NiCo2O4 nanoflake arrays and NiCo2O4 nanoneedle-assembled sisal-like microspheres are synthesized via facile solution methods in combination with thermal treatment. The NiCo2O4 nanoneedle arrays are evaluated as supercapacitor electrodes and demonstrate excellent electrochemical performances with a high specific capacitance (923 F g−1 at 2 A g−1), good rate capability, and superior cycling stability. The superior capacitive performances are mainly due to the unique one dimensional porous nanoneedle architecture, which provides a faster ion/electron transfer rate, improved reactivity, and enhanced structural stability. The fabrication method presented here is facile, cost-effective and scalable, which may open a new pathway for real device applications.

Graphical abstract: NiCo2O4 nanostructure materials: morphology control and electrochemical energy storage

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Supplementary files

Article information


Submitted
26 Jul 2014
Accepted
11 Aug 2014
First published
13 Aug 2014

Dalton Trans., 2014,43, 15887-15897
Article type
Paper
Author version available

NiCo2O4 nanostructure materials: morphology control and electrochemical energy storage

D. Zhang, H. Yan, Y. Lu, K. Qiu, C. Wang, Y. Zhang, X. Liu, J. Luo and Y. Luo, Dalton Trans., 2014, 43, 15887
DOI: 10.1039/C4DT02276A

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