Issue 18, 2013
From the journal:

RSC Advances

Facile synthesis of NiMoO4·xH2O nanorods as a positive electrode material for supercapacitors†

Mao-Cheng Liu,a   Long Kang,*ab   Ling-Bin Kong,*ab   Chao Lu,a   Xue-Jing Ma,a   Xiao-Ming Lia  and  Yong-Chun Luob  

* Corresponding authors

a State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, PR China
E-mail: kangl@lut.cn, konglb@lut.cn
Fax: +86-931-2976578
Tel: +86-931-2976579

b School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, PR China

Abstract

NiMoO4·xH2O nanorods with one-dimensional structures and high performances are synthesized by a facile chemical co-precipitation method. A maximum specific capacitance of 1136 F g−1 is achieved at a current density of 5 mA cm−2. The fabricated NiMoO4·xH2O is a good positive electrode material for supercapacitors due to its unique structure and excellent capacitive properties. To enhance the energy density and enlarge the potential window, an asymmetric supercapacitor is assembled using NiMoO4·xH2O as the positive electrode and activated carbon (AC) as the negative electrode in 2 M aqueous KOH electrolyte. It exhibits a high energy density and stable power characteristics. A maximum specific capacitance of 96.7 F g−1 and specific energy of 34.4 W h kg−1 are demonstrated for a cell voltage between 0 and 1.6 V, indicating that the fabrication of an asymmetric supercapacitor is an effective way to enhance the energy density.

Graphical abstract: Facile synthesis of NiMoO4·xH2O nanorods as a positive electrode material for supercapacitors

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Article information

DOI
https://doi.org/10.1039/C3RA22993A
Article type
Paper
Submitted
22 Nov 2012
Accepted
21 Jan 2013
First published
24 Jan 2013

RSC Adv., 2013,3, 6472-6478

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Facile synthesis of NiMoO4·xH2O nanorods as a positive electrode material for supercapacitors

M. Liu, L. Kang, L. Kong, C. Lu, X. Ma, X. Li and Y. Luo, RSC Adv., 2013, 3, 6472 DOI: 10.1039/C3RA22993A

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