Hierarchical Ni0.25Co0.75(OH)2 nanoarrays for a high-performance supercapacitor electrode prepared by an in situ conversion process

Wei Zhu; Zhiyi Lu; Guoxin Zhang; Xiaodong Lei; Zheng Chang; Junfeng Liu; Xiaoming Sun

doi:10.1039/C3TA10790F

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Hierarchical Ni_0.25Co_0.75(OH)₂ nanoarrays for a high-performance supercapacitor electrode prepared by an in situ conversion process†

Wei Zhu,^a Zhiyi Lu,^a Guoxin Zhang,^a Xiaodong Lei,^a Zheng Chang,^a Junfeng Liu^a and Xiaoming Sun*^a

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* Corresponding authors

^a State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
E-mail: sunxm@mail.buct.edu.cn
Fax: +86-10-64425385
Tel: +86-10-64448751

Abstract

Ni_0.25Co_0.75(OH)₂ hierarchical nanowire@nanoplatelet arrays were prepared by an in situ conversion from Ni_0.5Co_1.5(OH)₂CO₃ nanowire arrays in a highly concentrated basic solution at room temperature. These unique hierarchical nanoarrays showed a 7 times larger areal capacitance and better rate capability than the precursive one-dimensional nanowire arrays.

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Article information

DOI: https://doi.org/10.1039/C3TA10790F
Article type: Communication
Submitted: 24 Feb 2013
Accepted: 03 Jun 2013
First published: 03 Jun 2013

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J. Mater. Chem. A, 2013,1, 8327-8331

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Hierarchical Ni_0.25Co_0.75(OH)₂ nanoarrays for a high-performance supercapacitor electrode prepared by an in situ conversion process

W. Zhu, Z. Lu, G. Zhang, X. Lei, Z. Chang, J. Liu and X. Sun, J. Mater. Chem. A, 2013, 1, 8327 DOI: 10.1039/C3TA10790F

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Journal of Materials Chemistry A