6533b7d9fe1ef96bd126c3ff
RESEARCH PRODUCT
Platinum-doped CeO2 thin film catalysts prepared by magnetron sputtering.
Ivan KhalakhanValérie PotinIgor PíšIgor PíšMichal VáclavůJana Poltierová-vejpravováIva MatolínováShigenori UedaVladimír MatolínRoman FialaMykhailo VorokhtaZdeněk SoferToshiyuki MoriKeisuke KobayashiHideki Yoshikawasubject
Cerium oxideMaterials scienceAnalytical chemistryMineralogychemistry.chemical_elementSurfaces and InterfacesChemical vapor depositionSubstrate (electronics)Sputter depositionCondensed Matter PhysicschemistryX-ray photoelectron spectroscopySputteringElectrochemistryGeneral Materials ScienceThin filmPlatinumSpectroscopydescription
The interaction of Pt with CeO(2) layers was investigated by using photoelectron spectroscopy. The 30 nm thick Pt doped CeO(2) layers were deposited simultaneously by rf-magnetron sputtering on a Si(001) substrate, multiwall carbon nanotubes (CNTs) supported by a carbon diffusion layer of a polymer membrane fuel cell and on CNTs grown on the silicon wafer by the CVD technique. The synchrotron radiation X-ray photoelectron spectra showed the formation of cerium oxide with completely ionized Pt(2+,4+) species, and with the Pt(2+)/Pt(4+) ratio strongly dependent on the substrate. The TEM and XRD study showed the Pt(2+)/Pt(4+) ratio is dependent on the film structure.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-07-07 | Langmuir : the ACS journal of surfaces and colloids |