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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.)

Effect of CeO2 Presence on the Electronic Structure and the Activity for Ethanol Oxidation of Carbon Supported Pt

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Author(s):
Venturini, Seiti Inoue [1] ; Antolini, Ermete [2] ; Perez, Joelma [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Inst Chem, BR-13560970 Sao Paulo - Brazil
[2] Scuola Sci Mat, Via 25 Aprile 22, I-16016 Genoa - Italy
Total Affiliations: 2
Document type: Journal article
Source: CATALYSTS; v. 11, n. 5 MAY 2021.
Web of Science Citations: 0
Abstract

Pt/CeO2/C electrocatalysts in different compositions were prepared and their structural characteristics and activities for ethanol oxidation in alkaline media were evaluated. In the presence of CeO2, an increase in the platinum particle size was observed. XANES measurements indicated that the Pt d-band vacancies increased with increasing CeO2 amounts. For the first time, the decrease in electro activity was described to an electronic effect for high CeO2 contents. The dependence of the activity for ethanol oxidation on CeO2 content went to a maximum, due to the counteracting bifunctional and electronic effects of the metal oxide. (AU)

FAPESP's process: 19/22183-6 - Electrocatalysis VI: fundamental and applied aspects of emerging and classical problems in electrochemical energy conversion
Grantee:Edson Antonio Ticianelli
Support Opportunities: Research Projects - Thematic Grants