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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Relevance of Electronic Effects on the Yield of CO2 from Methanol Oxidation

Full text
Author(s):
Godoi, Denis R. M. [1] ; Villullas, H. Mercedes [1]
Total Authors: 2
Affiliation:
[1] Univ Estadual Paulista UNESP, Inst Quim, Dept Fisicoquim, BR-14800900 Araraquara, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Langmuir; v. 28, n. 2, p. 1064-1067, JAN 17 2012.
Web of Science Citations: 3
Abstract

The yields of products of methanol oxidation (HCHO, HCOOH, and CO2) were studied for carbon-supported PtRu nanoparticles having different amounts of alloyed and oxide phases. It is demonstrated that the increase in the Pt 5d-band vacancy enhances the production of CO2, which is not directly related with the catalytic activity for CO oxidation. Results prove the relevant role of oxides and, at the same time, shed some new light on mechanistic aspects of methanol oxidation on PtRu nanocatalysts. It is also demonstrated that extrapolating from the behavior of smooth surfaces to nanoparticle systems is not always valid. (AU)

FAPESP's process: 11/06538-7 - New strategies in the development of fuel cell catalysts: advanced methods of synthesis and on line and in situ techniques in the study of catalytic activity
Grantee:Hebe de las Mercedes Villullas
Support type: Regular Research Grants
FAPESP's process: 06/60769-2 - Study of the oxidation of methanol and ethanol over supported bimetallic catalysts prepared by colloidal methods
Grantee:Denis Ricardo Martins de Godoi
Support type: Scholarships in Brazil - Doctorate