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

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• 作者：Susana Palmero ; Alvaro Colina ; Emma Mu&#xf1 ; oz ; Ará ; nzazu Heras ; Virginia Ruiz ; Jes&#xfa ; s L&#xf3 ; pez-Palacios
• 关键词：Polyaniline ; Platinum ; Nanoparticles ; Methanol ; Catalysis ; Composite
• 刊名：Electrochemistry Communications
• 出版年：2009
• 出版时间：January 2009
• 年：2009
• 卷：11
• 期：1
• 页码：122-125
• 全文大小：254 K

文摘

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.