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Title: X-ray photoelectron spectroscopy study of the chemisorption of water on uranium and thorium and oxygen on uranium

Abstract

The initial stages of water and oxygen adsorption on clean uranium and thorium and oxygen adsorption on uranium has been studied by x-ray photoelectron spectroscopy. These measurements are made in the vicinity of 120 K; in some cases the effect of temperature was followed up to 500 K. Three oxygen (1s) photoelectron peaks are observed for water adsorbed on uranium and thorium. All three peaks have binding energies different from the adsorption of oxygen. The uranium and thorium (4f/sub 7/2/) lines also have different binding energies for water adsorption than for oxygen adsorption. Oxygen and an OH complex combine with uranium and thorium in a complex way, precluding the initial formation of simple oxides and confirming the importance of OH in the interaction of water with uranium and thorium.

Authors:
;
Publication Date:
Research Org.:
Univ. of California, Livermore
OSTI Identifier:
5011473
Resource Type:
Journal Article
Journal Name:
Surf. Sci.; (United States)
Additional Journal Information:
Journal Volume: 88
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; OXYGEN; CHEMISORPTION; THORIUM; BINDING ENERGY; SORPTIVE PROPERTIES; URANIUM; WATER; HIGH VACUUM; HYDROXIDES; LOW TEMPERATURE; PHOTOELECTRON SPECTROSCOPY; X RADIATION; ACTINIDES; CHEMICAL REACTIONS; ELECTROMAGNETIC RADIATION; ELECTRON SPECTROSCOPY; ELEMENTS; ENERGY; HYDROGEN COMPOUNDS; IONIZING RADIATIONS; METALS; NONMETALS; OXYGEN COMPOUNDS; RADIATIONS; SEPARATION PROCESSES; SORPTION; SPECTROSCOPY; SURFACE PROPERTIES; 400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials

Citation Formats

Nornes, S B, and Meisenheimer, R G. X-ray photoelectron spectroscopy study of the chemisorption of water on uranium and thorium and oxygen on uranium. United States: N. p., 1979. Web. doi:10.1016/0039-6028(79)90575-2.
Nornes, S B, & Meisenheimer, R G. X-ray photoelectron spectroscopy study of the chemisorption of water on uranium and thorium and oxygen on uranium. United States. https://doi.org/10.1016/0039-6028(79)90575-2
Nornes, S B, and Meisenheimer, R G. Mon . "X-ray photoelectron spectroscopy study of the chemisorption of water on uranium and thorium and oxygen on uranium". United States. https://doi.org/10.1016/0039-6028(79)90575-2.
@article{osti_5011473,
title = {X-ray photoelectron spectroscopy study of the chemisorption of water on uranium and thorium and oxygen on uranium},
author = {Nornes, S B and Meisenheimer, R G},
abstractNote = {The initial stages of water and oxygen adsorption on clean uranium and thorium and oxygen adsorption on uranium has been studied by x-ray photoelectron spectroscopy. These measurements are made in the vicinity of 120 K; in some cases the effect of temperature was followed up to 500 K. Three oxygen (1s) photoelectron peaks are observed for water adsorbed on uranium and thorium. All three peaks have binding energies different from the adsorption of oxygen. The uranium and thorium (4f/sub 7/2/) lines also have different binding energies for water adsorption than for oxygen adsorption. Oxygen and an OH complex combine with uranium and thorium in a complex way, precluding the initial formation of simple oxides and confirming the importance of OH in the interaction of water with uranium and thorium.},
doi = {10.1016/0039-6028(79)90575-2},
url = {https://www.osti.gov/biblio/5011473}, journal = {Surf. Sci.; (United States)},
number = ,
volume = 88,
place = {United States},
year = {1979},
month = {1}
}