Influence of beryllium cations on the electrochemical oxidation of methanol on stepped platinum surfaces in alkaline solution

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Leiden Institute of Chemistry
  • Instituto Universitario de Materiales y Nanotecnología, Universidad de la Laguna

Abstract

The role of beryllium on the oxidation of methanol on Pt stepped surfaces (Pt[(n-1) (111)x(110)]) orientation—Pt(553) with n = 5, Pt(554) n = 10, Pt(151514) n = 30), Pt(111) and Pt(110) single crystals in alkaline media was studied by cyclic voltammetry and Fourier transform infrared spectroscopy (FTIRS). The results suggest that under the conditions of the experiment, the methanol oxidation reaction follows a direct pathway with formaldehyde and formate as reaction intermediates. The combination of OHads and beryllium blocks the adsorption and oxidation of methanol on Pt(111), but appears to promote the complete oxidation of methanol to carbon dioxide/carbonate on Pt(110).

Details

Original languageEnglish
Pages (from-to)267-271
Number of pages5
JournalSurface Science
Volume631
Early online date27 Jun 2014
Publication statusPublished - 1 Jan 2015

Keywords

  • Electrocatalysis, Methanol oxidation, Platinum single crystals, Alkaline solution, beryllium