OXIDATION-STATE OF URANIUM - AN XPS STUDY OF ALKALI AND ALKALINE-EARTH URANATES

Authors
BERA S SALI SK SAMPATH S NARASIMHAN SV VENUGOPAL V
Citation
S. Bera et al., OXIDATION-STATE OF URANIUM - AN XPS STUDY OF ALKALI AND ALKALINE-EARTH URANATES, Journal of nuclear materials, 255(1), 1998, pp. 26-33
Citations number
19
Categorie Soggetti
Nuclear Sciences & Tecnology","Mining & Mineral Processing","Material Science
Journal title
Journal of nuclear materials → ACNP
ISSN journal
00223115
Volume
255
Issue
1
Year of publication
1998
Pages
26 - 33
Database
ISI
SICI code
0022-3115(1998)255:1<26:OOU-AX>2.0.ZU;2-Y
Abstract
X-ray photoelectron spectroscopy (XPS) studies are performed on some m ixed oxides of uranium with alkali and alkaline earth metals (Na, Li, Rb, Tl, Sr, Ba) to investigate the presence of multiple valence states of uranium in these compounds. Photoelectron peak positions, peal; wi dths and satellite positions were measured to identify the chemical st ates. The analysis of the shake up satellites and the deconvolution of the principal peaks are used to quantify the chemical states. The dom ination of U(V) chemical state is inferred in Na2U3O9 and Sr2U3O10. (C ) 1998 Elsevier Science B.V. All rights reserved.