Journal
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
Volume 595, Issue 2, Pages 115-124Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2006.07.012
Keywords
microemulsion method of synthesis; boron-doped diamond electrode; Pt/Sn bimetallic nanoparticles; ethanol electrooxidation; bifunctional mechanism; electronic effect
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Bimetallic Pt/Sn nanoparticles, synthesized by the microemulsion method, have been investigated once deposited on a boron-doped diamond (BDD) substrate electrode. Nanoparticles are in the nano-size domain and their effective composition corresponds to their expected ones. Moreover, Pt-decorated-by-Sn nanoparticles were synthesized rather than true alloys. Interestingly, these nanoparticles have exhibited superior electrocatalytic activity toward ethanol oxidation. It is believed that this surface could promote the activation of the ethanol C-C bond scission, or increase the turnover frequency of products formation. The elucidation of this point will require additional spectroscopic evidences. (c) 2006 Elsevier B.V. All rights reserved.
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