Effect of the Surface Structure of Pt(100) and Pt(110) on the Oxidation of Carbon Monoxide in Alkaline Solution: An FTIR and Electrochemical Study

Paramaconi Rodríguez*, Gonzalo García, Enrique Herrero, Juan M. Feliu, Marc T M Koper, Paramaconi Rodriguez

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)
147 Downloads (Pure)

Abstract

The electrochemical oxidation and infrared spectral features for carbon monoxide adsorbed on Pt(100) and Pt(110) in 0. 1 M NaOH were studied as a function of the annealing/cooling treatment with the objective to establish the influence of the platinum surface site geometry and the role of surface order in the electro-oxidation of CO on these two surfaces. Two common cooling methods (Ar and H 2/Ar atmospheres) were employed for both surface electrodes. Additionally, CO cooling and I 2 vapour cooling methods were used for Pt(100) and Pt(110), respectively. Multiple CO vibration bands were observed on both electrode surfaces, their distribution and potential dependence strongly depending on the surface treatment. copy; 2011 The Author(s).

Original languageEnglish
Pages (from-to)242-253
Number of pages12
JournalElectrocatalysis
Volume2
Issue number3
Early online date21 Jun 2011
DOIs
Publication statusPublished - Sep 2011

Keywords

  • Alkaline solution
  • CO oxidation
  • FTIR
  • Pt(hkl)
  • Surface structure

ASJC Scopus subject areas

  • Electrochemistry

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