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
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.
|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
|Deposited On:||20 Jan 2009 11:43|
|Last Modified:||29 Jan 2009 16:32|
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