Abstract
X-ray standing wave (XSW) analysis and X-ray photoelectron spectroscopy are used to trace the electronic and atomic-scale structural changes of a supported vanadium oxide system at different stages of its oxidation-reduction cycle. Both the oxidation state and adsorption geometry of the vanadium oxide and its α-Fe2O2(0001) single crystal support show reversible changes through the oxidation-reduction cycle characteristic of catalytic behavior. The 3D V atomic distribution maps, derived from the summation of the XSW measured Fourier components, reveal that the V undergoes adsorption site exchange during the oxidation and reduction cycle.
Original language | English (US) |
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Pages (from-to) | 1874-1877 |
Number of pages | 4 |
Journal | Journal of Physical Chemistry C |
Volume | 111 |
Issue number | 5 |
DOIs | |
State | Published - Feb 8 2007 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films