Structural evolution after oxidative pretreatment and CO oxidation of Au nanoclusters with different ligand shell composition: a view on the Au core

The reactivity of supported monolayer protected Au nanoclusters is directly affected by their structural dynamics under pretreatment and reaction conditions. The effect of different types of ligands of Au clusters supported on CeO(2) on their core structure evolution, under oxidative pretreatment an...

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Detalles Bibliográficos
Autores principales: Truttmann, Vera, Schrenk, Florian, Marini, Carlo, Palma, Mireia, Sanchez-Sanchez, Maricruz, Rameshan, Christoph, Agostini, Giovanni, Barrabés, Noelia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9890638/
https://www.ncbi.nlm.nih.gov/pubmed/36655719
http://dx.doi.org/10.1039/d2cp04498f
Descripción
Sumario:The reactivity of supported monolayer protected Au nanoclusters is directly affected by their structural dynamics under pretreatment and reaction conditions. The effect of different types of ligands of Au clusters supported on CeO(2) on their core structure evolution, under oxidative pretreatment and CO oxidation reaction, was investigated. X-ray absorption and X-ray photoelectron spectroscopy studies revealed that the clusters evolve to a similar core structure above 250 °C in all the cases, indicating the active role of the ligand–support interaction in the reaction.

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