Layer-by-layer electrosynthesis of Pt–Polyaniline nanocomposites for the catalytic oxidation of methanol

A new composite material based on the electrochemical generation of a layer-by-layer structure of polyaniline (PANI) and Pt particles has been prepared. The number of layers and the nature of the external layer (PANI or Pt) determine the electrocatalytic performance of the composite for the oxidatio...

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Bibliographic Details
Published in:Electrochemistry communications 2009, Vol.11 (1), p.122-125
Main Authors: Palmero, Susana, Colina, Alvaro, Muñoz, Emma, Heras, Aránzazu, Ruiz, Virginia, López-Palacios, Jesús
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Composite
Electrochemistry
Electrodes: preparations and properties
Exact sciences and technology
General and physical chemistry
Kinetics and mechanism of reactions
Methanol
Nanoparticles
Other electrodes
Platinum
Polyaniline
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Summary:A new composite material based on the electrochemical generation of a layer-by-layer structure of polyaniline (PANI) and Pt particles has been prepared. The number of layers and the nature of the external layer (PANI or Pt) determine the electrocatalytic performance of the composite for the oxidation of methanol. We demonstrate that the layer-by-layer approach to form the nanocomposite and modification of the Pt particles with a layer of PANI leads to substantially higher catalytic efficiency.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2008.10.033