Compatibility between Activity and Selectivity in Catalytic Oxidation of Benzyl Alcohol with Au-Pd Nanoparticle through Redox Switching of SnO x

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dc.date.accessioned2022-12-16T15:27:20Z
dc.date.available2022-12-16T15:27:20Z
dc.date.issued2021
dc.description.abstractA balance between catalytic activity and product selectivity remains a dilemma for the partial oxidation processes because the products are prone to be overoxidized. In this work, we report on the partial oxidation of benzyl alcohol using a modified catalyst consisting of nanosized Au–Pd particles (NPs) with tin oxide (SnOx) deposited on a mesoporous silica support. We found that the SnOx promotes the autogenous reduction of PdO to active Pd0 species on the Au–Pd NP catalyst (SnOx@AP-ox) before H2 reduction, which is due to the high oxophilicity of Sn. The presence of active Pd0 species and the enhancement of oxygen transfer by SnOx led to high catalytic activity. The benzaldehyde selectivity was enhanced with the increase of SnOx content on catalyst SnOx@AP-ox, which is ascribed to the modulated affinity of reactants and products on the catalyst surface through the redox switching of Sn species. After H2 reduction, SnOx was partially reduced and Au–Pd–Sn alloy was formed. The formation of Au–Pd–Sn alloy weakened both the catalytic synergy of Au–Pd alloy NPs and the adsorption of benzyl alcohol on the reduced catalyst, thus leading to low catalytic activity.en_US
dc.identifier.citationWu, P., He, Z., Liu, Y., Song, L., Wang, C., Muhumuza, E., ... & Yan, Z. (2021). Compatibility between Activity and Selectivity in Catalytic Oxidation of Benzyl Alcohol with Au–Pd Nanoparticles through Redox Switching of SnO x. ACS Applied Materials & Interfaces, 13(42), 49780-49792.https://doi.org/10.1021/acsami.1c10207en_US
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/6356
dc.language.isoenen_US
dc.publisherACS Applied Materials & Interfacesen_US
dc.subjectSnOx Au−Pd oxygen transfer alloying benzyl alcohol oxidationen_US
dc.titleCompatibility between Activity and Selectivity in Catalytic Oxidation of Benzyl Alcohol with Au-Pd Nanoparticle through Redox Switching of SnO xen_US
dc.typeArticleen_US
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