Formation of polyaniline/Pt nanoparticle composite films and their electrocatalytic properties

O'Mullane, A, Dale, S, Day, T, Wilson, N, Macpherson, J and Unwin, P 2006, 'Formation of polyaniline/Pt nanoparticle composite films and their electrocatalytic properties', Journal of Solid State Electrochemistry, vol. 10, no. 10, pp. 792-807.


Document type: Journal Article
Collection: Journal Articles

Title Formation of polyaniline/Pt nanoparticle composite films and their electrocatalytic properties
Author(s) O'Mullane, A
Dale, S
Day, T
Wilson, N
Macpherson, J
Unwin, P
Year 2006
Journal name Journal of Solid State Electrochemistry
Volume number 10
Issue number 10
Start page 792
End page 807
Total pages 16
Publisher Springer
Abstract Polyaniline (PANI) thin films modified with platinum nanoparticles have been prepared by several methods, characterised and assessed in terms of electrocatalytic properties. These composite materials have been prepared by the in situ reduction of a platinum salt (K2PtCl4) by PANI, in a variety of solvents, resulting in the formation of platinum nanoparticles and clusters of different sizes. The further deposition of platinum clusters at spin cast thin films of PANI/Pt composites from a neutral aqueous solution of K2PtCl4 has also been demonstrated. Thin-film electrodes prepared from these materials have been investigated for their electrocatalytic activity by studying hydrazine oxidation and dichromate reduction. The properties of the composite materials have been determined using UV-visible spectroscopy, atomic force microscopy and transmission electron microscopy. The nature of the material formed is strongly dependent on the solvent used to dissolve PANI, the method of preparation of the PANI/Pt solution and the composition of the spin cast thin film before subsequent deposition of platinum from the aqueous solution of K2PtCl4.
Subject Synthesis of Materials
DOI - identifier 10.1007/s10008-006-0176-1
ISSN 1432-8488
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