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Photothermal Deflection Spectroscopy Investigations of Uranium Electrochemistry

Published online by Cambridge University Press:  01 January 1992

James D. Rudnicki  and
Richard E. Russo
James D. Rudnicki
Affiliation:
Lawrence Berkeley Laboratory, Berkeley, California, 94720, USA
Richard E. Russo
Affiliation:
Lawrence Berkeley Laboratory, Berkeley, California, 94720, USA
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Abstract

Photothermal Deflection Spectroscopy (PDS) has been successfully applied to the study of uranium oxide electrochemistry. A brief description of PDS and preliminary results that demonstrate the technique are presented. Concentration gradients formed at the electrode surface are measured by this technique. The gradients give insight into the reaction mechanisms. There is some evidence of the initiation of non-electrochemical dissolution of the uranium oxide. Optical absorption by the uranium oxide is measured by PDS and the first results indicate that the absorption of the surface does not change during electrochemical experiments. This result is contrary to literature measurements of bulk samples that indicate that the optical absorption should be strongly changing.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 294: Symposium V – Scientific Basis for Nuclear Waste Management XVI , 1992 , 54
Copyright
Copyright © Materials Research Society 1993

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References

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