Investigation of oxygen vacancies in CeO2/Pt system with synchrotron light techniques. (May 2016)

• Record Type: Journal Article
• Authors: Braglia, L; Bugaev, A L; Lomachenko, K A; Soldatov, A V; Lamberti, C; Guda, A A
• Is Part Of: Journal of physics. Volume 712(2016)
• Publication Date: 2016-05
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/712/1/012064
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: A peculiar property of ceria is the ease to form oxygen vacancies, producing reactive sites or facilitating ionic diffusion. For these reasons ceria promotes catalytic activities for a number of important reactions when it is used as a support for transition metals. In our work we study the temporal evolution of oxygen vacancies formation by time-resolved XANES at Ce K- edge and XRD measurements on CeO2 /Pt nanoparticles, successfully monitoring the reaction of CO oxidation.