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Electrochemical codeposition of nickel oxide and polyaniline

Peng, XuYuan and Liu, Xiao-Xia and Hua, Pei-Jie and Diamond, Dermot and Lau, King-Tong (2010) Electrochemical codeposition of nickel oxide and polyaniline. Journal of Solid State Electrochemistry, 14 (1). pp. 1-7. ISSN 1433-0768

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Abstract

Nickel oxide (NiOx) and polyaniline (PAni) were electrocodeposited from NiSO4 and aniline through cyclic voltammetric scans to afford PAni–NiOx composite film at controlled pH environment. The electrochemical activities of the film were investigated by cyclic voltammetry in 0.1 M NaOH and 0.1 M H2SO4, respectively. Typical redox couples of PAni in 0.1 M H2SO4 appeared at approximately 0.2 and 0.4 V vs. saturated calomel electrode (SCE); Ni(II)/Ni(III) redox couple was observed at approximately 0.4 V vs. SCE in 0.1 M NaOH. The morphologies and elemental components of the films were inspected by scanning electron microscopy and energy dispersive X-ray diffraction. The stability of nickel oxide in the films was found to be enhanced against acidic environments. Electrochemical catalytic behavior of NiOx within the composite film was conserved and demonstrated by catalytic oxidation of methanol and ethanol.

Item Type:Article (Published)
Refereed:Yes
Additional Information:The original publication is available at springerlink.com.
Uncontrolled Keywords:Nickel oxide; Polyaniline; Composite film; Electrocatalysis;
Subjects:Physical Sciences > Chemistry
DCU Faculties and Centres:Research Initiatives and Centres > National Centre for Sensor Research (NCSR)
Publisher:Springer Verlag
Official URL:http://dx.doi.org/10.1007/s10008-008-0778-x
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:2431
Deposited On:16 Mar 2009 11:05 by XuYuan Peng. Last Modified 25 Nov 2009 15:01

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