The influence of acetic acid on the ethanol electrooxidation on a platinum electrode
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
20/10/2012
20/10/2012
2011
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Resumo |
In the presented work, the evaluation of the influence of acetic acid in the electrochemical environment on the ethanol electro-oxidation reaction on a polycrystalline platinum electrode is presented for the first time. Using cyclic voltammetry. chronoamperometry and in situ Fourier Transformed IR spectroscopy (FTIR) it was demonstrated that an inhibition of the ethanol oxidation reaction occurs for bulk acetic acid concentrations of the order 0.1 mu mol L(-1) -5 mmol L(-1). This inhibition effect is related to the decrease of CO(2) and acetaldehyde production as confirmed by spectroscopic results. (C) 2011 Elsevier B.V. All rights reserved. Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) CNPq Conselho Nacional de Pesquisa FAPESP Fundacao de Amparo a Pesquisa do Estado de Sao Paulo Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) |
Identificador |
ELECTROCHEMISTRY COMMUNICATIONS, v.13, n.6, p.527-529, 2011 1388-2481 http://producao.usp.br/handle/BDPI/31574 10.1016/j.elecom.2011.02.002 |
Idioma(s) |
eng |
Publicador |
ELSEVIER SCIENCE INC |
Relação |
Electrochemistry Communications |
Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE INC |
Palavras-Chave | #Platinum #Ethanol #FTIR #Acetic acid #Poisoning #SINGLE-CRYSTAL ELECTRODES #TIME FTIR SPECTROSCOPY #IN-SITU FTIR #POLYCRYSTALLINE PLATINUM #ELECTROCHEMICAL OXIDATION #ADSORPTION #SURFACES #ALLOY #ELECTROCATALYSTS #MECHANISM #Electrochemistry |
Tipo |
article original article publishedVersion |