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The effect of the composition of the alloy of ruo2 and pt nanocrystals on intermediate adsorption during methanol oxidation

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2020
The_effect_of_pub_2020.pdf (655.6Kb)
Authors
Spasojević, Milica
Ribić-Zelenović, Lenka
Spasojević, Miroslav
Trišović, Tomislav
Article (Published version)
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Abstract
A catalytic coating composed of a mixture of RuO2 and Pt nanocrystals was prepared by a thermal procedure on a titanium substrate and used for the electrochemical oxidation of methanol. The adsorption of the intermediate CO, formed by methanol oxidation on Pt nanocrystals, depended on potential and the coating composition. An increase in the RuO2 content decreased the rate of methanol dehydrogenation and increased the rate of oxidation of the strongly bound intermediate COad. This caused a decrease in the maximum coverage of Pt nanocrystals with COad and a shift of the rapid linear drop in COad coverage to more negative potentials.
Keywords:
RuO2 / nanocrystals / methanol oxidation
Source:
Revue Roumaine de Chimie, 2020, 65, 5, 481-489
Publisher:
  • Academia Romana
Projects:
  • Directed synthesis, structure and properties of multifunctional materials (RS-172057)

DOI: 10.33224/rrch.2020.65.5.08

ISSN: 0035-3930

WoS: 000582608300008

Scopus: 2-s2.0-85091837121
[ Google Scholar ]
URI
http://cherry.chem.bg.ac.rs/handle/123456789/4273
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