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Type: Artigo
Title: Supported AuCu alloy nanoparticles for the preferential oxidation of CO (CO-PROX)
Author: Fiuza, T.E.R.
Zanchet, D.
Abstract: The insertion of copper into the gold lattice forming gold-copper (AuCu) nanoalloys enhances the gold catalytic performance in reactions such as CO oxidation. Here, we compared the catalytic performance of 6 nm AuCu nanoparticles (NPs) supported on SiO2 (AuCu_SiO2), a nonreducible oxide, and CeO2 (AuCu_CeO2), a reducible one, under preferential oxidation of CO (CO-PROX). Under reaction conditions, the support nature impacted on the stabilization of different species on the catalyst surface. The AuCu_CeO2 was both more active and more stable, which was associated with the ability of CeO2 to stabilize the AuCu alloy phase under reaction conditions
Subject: Ouro
Country: Estados Unidos
Editor: American Chemical Society
Rights: Fechado
Identifier DOI: 10.1021/acsanm.9b02596
Date Issue: 2020
Appears in Collections:IQ - Artigos e Outros Documentos

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