In situ growth of epitaxial cerium tungstate (100) thin films
- 11 March 2011
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 13 (15), 7083-7089
- https://doi.org/10.1039/c0cp03012k
Abstract
The deposition of ceria on a preoxidized W(110) crystal at 870 K has been studied in situ by photoelectron spectroscopy and low-energy electron diffraction. Formation of an epitaxial layer of crystalline cerium tungstate Ce6WO12(100), with the metals in the Ce3+ and W6+ chemical states, has been observed. The interface between the tungsten substrate and the tungstate film consists of WO suboxide. At thicknesses above 0.89 nm, cerium dioxide grows on the surface of Ce6WO12, favoured by the limited diffusion of tungsten from the substrate.Keywords
This publication has 33 references indexed in Scilit:
- Surface core-level shifts at vicinal tungsten surfacesPhysical Review B, 2009
- Palladium interaction with CeO2, Sn–Ce–O and Ga–Ce–O layersJournal of Physics: Condensed Matter, 2008
- WOx-CeO2 and WOx-Nb2O5 catalysts deactivation during hexane isomerizationAIChE Journal, 2008
- Photoemission electron microscopy with chemical sensitivity: SPELEEM methods and applicationsSurface and Interface Analysis, 2006
- Surface states and Fermi surface of ordered-like Ce films on W(110)Physical Review B, 2003
- Effects of adsorption site and surface stress on ordered structures of oxygen adsorbed on W(110)Physical Review Letters, 1993
- ‘‘γ-α’’ phase transition of monolayer Ce on W(110)Physical Review Letters, 1991
- SORPTION OF NICKEL ON CERIUM(IV)-BASED ION-EXCHANGERSChemistry Letters, 1985
- Atomic subshell photoionization cross sections and asymmetry parameters: 1 ⩽ Z ⩽ 103Atomic Data and Nuclear Data Tables, 1985
- Cerium Tungstate as a Semi-ConductorNature, 1946