Skip to Main content Skip to Navigation
Journal articles

XPS study of Pt/CexZr1-xO2/Si composite systems

Abstract : This work describes the study of a surface reduction of ceria zirconia mixed oxides (CeZrO) as either thin films or powders, both with and without Pt present. XPS was used to measure the composition of the surface and the oxidation states of all metals contained within the material. The thin film of CeZrO showed little reactivity towards the reducing conditions used. The size of the Pt clusters was also determined from the data. The Pt was found to always exist in the metallic state. The Zr4+ was not seen to change during all treatments. For the powder samples the CE4+ was readily reduced to approximately 60%. Pt was found to be initially oxidised with the % of metallic Pt increasing with reduction temperature. Again no change in the Zr was observed.
Document type :
Journal articles
Complete list of metadatas

https://hal-emse.ccsd.cnrs.fr/emse-00610148
Contributor : Andrée-Aimée Toucas <>
Submitted on : Thursday, July 21, 2011 - 11:07:55 AM
Last modification on : Thursday, September 10, 2020 - 10:44:02 AM

Identifiers

  • HAL Id : emse-00610148, version 1

Citation

Aaron Norman, Robert Sporken, Anouk Galtayries, Frédéric Mirabella, Kester Kenevey, et al.. XPS study of Pt/CexZr1-xO2/Si composite systems. Material Research Society Symposium, 2000, pp.345-350. ⟨emse-00610148⟩

Share

Metrics

Record views

201