Nano Archive

Functional multi-walled carbon nanotube/polyaniline composite films as supports of platinum for formic acid electrooxidation

Zhu, Zan-Zan and Wang, Zhe and Li, Hu-Lin (2008) Functional multi-walled carbon nanotube/polyaniline composite films as supports of platinum for formic acid electrooxidation. APPLIED SURFACE SCIENCE, 254 (10). pp. 2934-2940.

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Official URL: http://dx.doi.org/10.1016/j.apsusc.2007.10.033

Abstract

Embedding of carbon nanotubes in conducting polymeric matrices for various nanocomposites material is now a popular area. In this article, a concise chemical method has been described for the preparation of homogeneous nanocomposite of multi-walled carbon nanotube (MWNT)/polyaniline (PANI) by electrochemical codeposition. For this we functionalized the MWNTs via the diazotization reaction. This helped to disperse the nanotubes in aniline. The composite films were dispersed Pt by electrodeposition technique. The presence of MWNTs and platinum in the composite films was confirmed by XRD analysis and transmission electron microscopy (TEM). Four-point probe investigations revealed that the MWNT/PANI composite films exhibited a good conductivity. Cyclic voltammograms (CV) showed that Pt-modified MWNT/PANI composite films perform higher electrocatalytic activity and better long-term stability than Pt-modified pure PANI film toward formic acid oxidation. The results imply that the MWNT/PANI composite films as a promising support material improves the electrocatalytic activity for formic acid oxidation greatly. (C) 2007 Elsevier B.V. All rights reserved.

Item Type:Article
Uncontrolled Keywords:multi-walled carbon nanotubes; polyaniline; composite film; formic acid electrooxidation; electrocatalytic activity
Subjects:Material Science > Functional and hybrid materials
Physical Science > Nano objects
Material Science > Nanochemistry
ID Code:555
Deposited By:IoN
Deposited On:20 Jan 2009 11:43
Last Modified:29 Jan 2009 16:32

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