Oxidation of Ethanol and Its Derivatives on Well Defined Pt Single Crystal Electrodes Vicinal to Pt(111): A Comparative Study

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Title: Oxidation of Ethanol and Its Derivatives on Well Defined Pt Single Crystal Electrodes Vicinal to Pt(111): A Comparative Study
Authors: Arán-Ais, Rosa M. | Santos, Nathalia Abe | Villullas, Hebe M. | Feliu, Juan M.
Research Group/s: Electroquímica de Superficies
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica
Keywords: Ethanol | Oxidation | Pt(111) electrodes
Knowledge Area: Química Física
Issue Date: 2013
Publisher: The Electrochemical Society
Citation: ECS Transactions. 2013, 53(28): 11-22. doi:10.1149/05328.0011ecst
Abstract: The oxidation of ethanol (EtOH) at Pt(111) electrodes is dominated by the 4e path leading to acetic acid. The inclusion of surface defects such as those present on stepped surfaces leads to an increase of the reactivity towards the most desirable 12e path leading to CO2 as final product. This path is also favored when the methyl group is more oxidized, as in the case of ethylene glycol (EG) that spontaneously decomposes to CO on Pt(111) electrodes, thus showing a more effective breaking of the C-C bond. Some trends in reactivity can be envisaged when other derivative molecules are compared at well-ordered electrodes. This strategy was used in the past, but the improvement in the electrode pretreatment and the overall information available on the subject suggest that relevant information is still missing.
Sponsor: The work was carried out under the financial support by the MICINN (project No. CTQ2010-16271). N.A.B. thanks the fellowship grant 2012/01040-3, São Paulo Research Foundation (FAPESP).
URI: http://hdl.handle.net/10045/55566
ISSN: 1938-6737 (Print) | 1938-5862 (Online)
DOI: 10.1149/05328.0011ecst
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2013 ECS - The Electrochemical Society
Peer Review: si
Publisher version: http://dx.doi.org/10.1149/05328.0011ecst
Appears in Collections:INV - EQSUP - Artículos de Revistas

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