Please use this identifier to cite or link to this item:
Title: Methanol Electrooxidation on Pt/RuO<inf>2</inf> Catalyst
Authors: Spasojević Milica
Ribic-Zelenovic, Lenka
Spasojević M.
Markovic D.
Issue Date: 2021
Abstract: Abstract: A catalytic coating, composed of a mixture of nanocrystals of Pt and RuO2, used for oxidation of CH3OH, was formed by the thermal procedure. The size of the RuO2 nanocrystals was increasing and of Pt was decreasing with increasing the content of RuO2. The optimal coating composition depended on potential. At more positive potentials, the optimal coatings contained lower amounts of RuO2. The oxidation reaction of CH3OH on the coatings with the RuO2 content higher than optimal, was determined by dehydrogenization of CH3OH. At lower amounts of RuO2, oxidation of CH3OH was determined by the oxidation reaction of intermediates COad with oxy species of ruthenium. The catalytic effect was caused by a bifunctional mechanism. The bifunctional mechanism is based on the fact that oxy species were formed on Ru at more negative potentials than on Pt. These oxy species oxidized COad intermediates, bound to adjacent Pt atoms and thus discharged them for dehydrogenation of the subsequent CH3OH molecules.
Type: article
DOI: 10.1134/S1023193520120253
ISSN: 1023-1935
SCOPUS: 2-s2.0-85112020154
Appears in Collections:Faculty of Agronomy, Čačak

Page views(s)




Files in This Item:
File Description SizeFormat 
  Restricted Access
29.86 kBAdobe PDFThumbnail

Items in SCIDAR are protected by copyright, with all rights reserved, unless otherwise indicated.