A resonant photoelectron spectroscopy study of Sn(O  x  ) doped CeO 2  catalysts | Zendy

Matolín V. | Zendy; Cabala M. | Zendy; Cháb V. | Zendy; Matolínová I. | Zendy; Prince K. C. | Zendy; Škoda M. | Zendy; Šutara F. | Zendy; Skála T. | Zendy; Veltruská K. | Zendy

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A resonant photoelectron spectroscopy study of Sn(O x ) doped CeO 2 catalysts

Author(s) -

Matolín V.,

Cabala M.,

Cháb V.,

Matolínová I.,

Prince K. C.,

Škoda M.,

Šutara F.,

Skála T.,

Veltruská K.

Publication year - 2008

Publication title -

surface and interface analysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.52

H-Index - 90

eISSN - 1096-9918

pISSN - 0142-2421

DOI - 10.1002/sia.2625

Subject(s) - x ray photoelectron spectroscopy , cerium oxide , cerium , catalysis , tin oxide , oxide , doping , tin , ion , materials science , inorganic chemistry , analytical chemistry (journal) , chemistry , nuclear magnetic resonance , metallurgy , physics , biochemistry , optoelectronics , organic chemistry , chromatography

The interaction of tin with cerium oxide thin film and cerium oxide nanosized powder was studied using XPS and resonant photoelectron spectroscopy (RPES) in the Ce 4d–4f photoabsorption region. A strong tin–ceria interaction led to partial Ce 4+ → Ce 3+ transition and Sn + ion formation. A corresponding increase of the Ce 4f state occupancy was observed as a giant 4f resonance enhancement. In the case of powder catalyst a strong CeO 2 Sn interaction lead to formation of CeSnO mixed oxide system characterized by Ce 3+ ion concentration enhancement and increase of Ce 4f occupation. It explains generally higher catalytic activity of the CeSnO mixed oxide catalysts when comparing with the individual oxides. Copyright © 2008 John Wiley & Sons, Ltd.

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