In situ FTIR spectroscopic study of ethanol oxidation on Pt(111)/Rh/Sn surface. The anion effect

Autor(es)

Paulino, Marcia E. ^[1] ; Nunes, Luiza M. S. ^[1] ; Gonzalez, Ernesto R. ^[1] ; Tremiliosi-Filho, Germano ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo, Inst Quim Sao Carlos, BR-13569590 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Electrochemistry Communications; v. 52, p. 85-88, MAR 2015.
• Citações Web of Science: 6

Resumo

In situ Fourier TransformInfrared (FTIR) spectroscopy was used to study the anion effect in ethanol oxidation on Pt(111) surface modified by rhodium and tin, Pt(111)/Rh/Sn. The in situ FTIR spectra showed that ethanol oxidation reaction pathway is strongly influenced by the nature of the electrolyte anion. In perchloric and sulfuric acid electrolytes were observed the formation of acetaldehyde, acetic acid and CO2; however in phosphoric acid the acetic acid is not observed. The sulfuric acid is the most favorable electrolyte for acetaldehyde and CO2 formation. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 12/18807-5 - Síntese, caracterização e aplicação de nanopartículas de metais nobres para a reação de eletro-oxidação de glicerol visando a aplicação em células a combustível.
• Beneficiário: Luiza Maria da Silva Nunes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado