期刊
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
卷 135, 期 2-3, 页码 167-175出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.elspec.2004.03.004
关键词
vanadium oxide; X-ray photoelectron spectroscopy (XPS); V2p photoelectron core level; XPS analysis; oxidation state
类别
The V2p and O1s XPS spectra of the vanadium oxides V2O5, VO2 and V2O3 were measured to determine the V2p XPS fit parameters, (binding energy (BE) and % Lorentzian-Gaussian) for the vanadium oxidation states V5+, V4+ and V3+. The VO2 and V2O3 powder pellets were over-oxidized and no V3+ state was observed. Therefore an Ar+ bombardment was given to the V2O3 to reduce the vanadium oxide and to obtain the V3+ state. An XPS fit procedure is presented on the basis of these spectra. This fit procedure includes the combined fitting of the V2p and the O1s signal. The binding energy of the V2P(3/2) core level for each vanadium oxidation state is fixed relative to the O1s level. V2p satellite peaks were added to the fit especially for the lower vanadium oxidation states. (C) 2004 Elsevier B.V. All rights reserved.
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