The oxidation of methanal on platinum coatings on titanium in acidic media

Authors

  • Lenka Zelenović-Ribić Faculty of Agronomy in Čačak, University of Kragujevac, Serbia and Montenegro
  • Amalija Tripković Faculty of Technology and Metallurgy, University of Belgrade, Serbia and Montenegro
  • Lidija Rafailović Faculty of Agronomy in Čačak, University of Kragujevac, Serbia and Montenegro
  • Miroslav Spasojević Faculty of Agronomy in Čačak, University of Kragujevac, Serbia and Montenegro

DOI:

https://doi.org/10.5937/

Keywords:

methanal, electrochemical oxidation, electrode, cyclic voltammograms, polarization curves

Abstract

 A platinum coating was thermally obtained on an adequately prepared titanium substrate. As determined by x-ray investigations, the coating contained 10-60 nm microcrystals of pure metal platinum. The electrochemical oxidation of methanal on the platinum coating took place following the dual path mechanism. Methanal was directly oxidized to CO2 and H2O. Parallel reactions of formation of strongly adsorbed –COad species blocking the platinum surface thus preventing direct methanal oxidation were performed. The mechanism of the –COad poisoning species formation in the hydrogen region was different from the one in the double-layer region. 

References

Downloads

Published

06.02.2026

Issue

Vol. 10 No. 19 (2005)

Section

Articles