Au-Decorated Ce–Ti Mixed Oxides for Efficient CO Preferential Photooxidation

Au-Decorated Ce–Ti Mixed Oxides for Efficient CO Preferential Photooxidation

We investigated the photocatalytic behavior of gold nanoparticles supported on CeO2–TiO2 nanostructured matrixes in the CO preferential oxidation in H2-rich stream (photo-CO-PROX), by modifying the electronic band structure of ceria through addition of titania and making it more suitable for interac...

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Veröffentlicht in:ACS applied materials & interfaces 2020-08, Vol.12 (34), p.38019-38030
Hauptverfasser: Infantes-Molina, Antonia, Villanova, Andrea, Talon, Aldo, Kohan, Mojtaba Gilzad, Gradone, Alessandro, Mazzaro, Raffaello, Morandi, Vittorio, Vomiero, Alberto, Moretti, Elisa
Format: Artikel
Sprache:eng
Schlagworte:
ceria−titania
CO preferential oxidation
CO-PROX
Energy, Environmental, and Catalysis Applications
Experimental Physics
Experimentell fysik
gold nanoparticles
photocatalysis
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Zusammenfassung:We investigated the photocatalytic behavior of gold nanoparticles supported on CeO2–TiO2 nanostructured matrixes in the CO preferential oxidation in H2-rich stream (photo-CO-PROX), by modifying the electronic band structure of ceria through addition of titania and making it more suitable for interacting with free electrons excited in gold nanoparticles through surface plasmon resonance. CeO2 samples with different TiO2 concentrations (0–20 wt %) were prepared through a slow coprecipitation method in alkaline conditions. The synthetic route is surfactant-free and environmentally friendly. Au nanoparticles (
ISSN:1944-8244
1944-8252
1944-8252
DOI:10.1021/acsami.0c08258