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dc.contributor.authorJorge, Ana Belén-
dc.contributor.authorSauthier, Guillaume-
dc.contributor.authorFraxedas, J.-
dc.contributor.authorSánchez, Clément-
dc.contributor.authorFuertes, Amparo-
dc.identifierdoi: 10.1039/c2jm15230d-
dc.identifierissn: 0959-9428-
dc.identifier.citationJournal of Materials Chemistry 22: 3220-3226 (2012)-
dc.description.abstractNanocrystalline porous N-doped ceria films have been prepared by combining sol-gel chemistry, evaporation-induced self-assembly (EISA), flash crystallization and treatment in NH 3 gas between 550 and 700 °C at flow rates of 270 and 670 cm 3 min -1. The maximum nitrogen uptake is 0.06 moles per Ce, observed for the sample treated at 600 °C and NH 3 flow rate of 670 cm 3 min -1. Nitrogen bonding to cerium is proved by XPS, through the observation of the characteristic Ce-N feature at ∿397 eV. Microstructural characterization shows that the mesostructure of the films is lost for treatment temperatures in ammonia higher than 550 °C but the porous fraction remains between 35 and 40% after ammonolysis for all the samples. The nitrided films show photocatalytic activity under visible light in the acetaldehyde decomposition, with the best results obtained for the films treated at 550 °C under NH 3 flow rate of 670 cm 3 min -1. © 2012 The Royal Society of Chemistry.-
dc.publisherRoyal Society of Chemistry-
dc.titleNanocrystalline N-doped ceria porous thin films as efficient visible-active photocatalysts-
dc.description.versionPeer Reviewed-
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