Issue 6, 2013
From the journal:

Journal of Materials Chemistry A

Facile fabrication of MWCNT-doped NiCoAl-layered double hydroxide nanosheets with enhanced electrochemical performances†

Juan Yang,a   Chang Yu,a   Xiaoming Fan,a   Zheng Ling,a   Jieshan Qiu*a  and  Yury Gogotsib  

* Corresponding authors

a Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P.R. China
E-mail: jqiu@dlut.edu.cn

b Department of Materials Science and Engineering and A.J. Drexel Nanotechnology Institute, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA

Abstract

Ternary-component NiCoAl-layered double hydroxide nanosheets (NiCoAl-LDH) and multiwall carbon nanotube (MWCNT) nanohybrids (NiCoAl-LDH–MWCNT) have been successfully fabricated by a facile yet simple urea precipitation method. The MWCNTs are well incorporated into the network of NiCoAl-LDH nanosheets to form homogeneous nanohybrid materials. The electrochemical performances of nanohybrids as pseudocapacitor electrode materials were measured and investigated by cyclic voltammetry (CV) and galvanostatic charge and discharge techniques. It was found that the electrochemical performances of NiCoAl-LDH nanosheets are enhanced by the incorporation of MWCNTs into the sheet-shaped NiCoAl-LDH network. The specific capacitance of NiCoAl-LDH–MWCNT nanohybrids reaches 1035 F g−1 at a current density of 1 A g−1, and keeps a value of 597 F g−1 with a 57.7% capacitance retention rate even at a current density of 10 A g−1, which increases by 33.3% in comparison to that of the pristine NiCoAl-LDH nanosheets.

Graphical abstract: Facile fabrication of MWCNT-doped NiCoAl-layered double hydroxide nanosheets with enhanced electrochemical performances

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Article information

DOI
https://doi.org/10.1039/C2TA00832G
Article type
Paper
Submitted
25 Oct 2012
Accepted
20 Nov 2012
First published
20 Nov 2012

J. Mater. Chem. A, 2013,1, 1963-1968

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Facile fabrication of MWCNT-doped NiCoAl-layered double hydroxide nanosheets with enhanced electrochemical performances

J. Yang, C. Yu, X. Fan, Z. Ling, J. Qiu and Y. Gogotsi, J. Mater. Chem. A, 2013, 1, 1963 DOI: 10.1039/C2TA00832G

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