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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.)

Impact of the AuAg NPs Composition on Their Structure and Properties: A Theoretical and Experimental Investigation

Full text
Author(s):
Gomes, Janaina F. [1] ; Garcia, Amanda C. [1] ; Pires, Cleiton [1] ; Ferreira, Eduardo B. [1] ; Albuquerque, Rodrigo Q. [1] ; Tremiliosi-Filho, Germano [1] ; Gasparotto, Luiz H. S. [1]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Inst Chem, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of Physical Chemistry C; v. 118, n. 49, p. 28868-28875, DEC 11 2014.
Web of Science Citations: 16
Abstract

Bimetallic AuAg NPs (NPs) were synthesized via chemical reduction of AuCl3 and AgNO3 and fully characterized by several experimental techniques and theoretical calculations. The plasmon absorptions of these NPs were correlated with the most stable particle structure through different simulations, revealing the most stable structure to be consisted of a gold core and a silver shell. This structural motif was then confirmed by HR-TEM coupled with line-scan EDS and molecular dynamics. Finally, the impact of the nanoparticle composition on their catalytic performance for glycerol electrooxidation was evaluated. The better catalytic performance in terms of the onset potential found for the Au50Ag50 and Au75Ag25 catalysts suggests the existence of a synergistic effect between Au and Ag. (AU)

FAPESP's process: 12/10856-7 - Investigation of the mechanism of glycerol electro-oxidation on metallic nanoparticles
Grantee:Amanda Cristina Garcia
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 09/08511-9 - Mechanistic studies of the electro-oxidation reaction of glycerol on model catalysts in different electrochemical environments by cyclic voltammeter and spectroscopy
Grantee:Janaina Fernandes Gomes
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 14/02071-5 - Theoretical investigation of the aggregation of cationic complexes of Ir(III) with potential application in LECs and OLEDs
Grantee:Rodrigo Queiroz de Albuquerque
Support type: Regular Research Grants
FAPESP's process: 12/02955-5 - Spectroscopic study of supramolecular systems assembled from zeolite l nanocrystals and their use in water decontamination with sunlight
Grantee:Rodrigo Queiroz de Albuquerque
Support type: Regular Research Grants