Hostname: page-component-77c89778f8-7drxs Total loading time: 0 Render date: 2024-07-17T04:55:25.493Z Has data issue: false hasContentIssue false
  • English
  • Français

Oxidation of Candu UO2 Fuel by the Alpha-Radiolysis Products of Water

Published online by Cambridge University Press:  28 February 2011

D. W. Shoesmith ,
S. Sunder ,
L. H. Johnson  and
M. G. Bailey
D. W. Shoesmith
Affiliation:
Atomic Energy of Canada Limited Whiteshell Nuclear Research Establishment Pinawa, Manitoba, Canada ROE 1LO
S. Sunder
Affiliation:
Atomic Energy of Canada Limited Whiteshell Nuclear Research Establishment Pinawa, Manitoba, Canada ROE 1LO
L. H. Johnson
Affiliation:
Atomic Energy of Canada Limited Whiteshell Nuclear Research Establishment Pinawa, Manitoba, Canada ROE 1LO
M. G. Bailey
Affiliation:
Atomic Energy of Canada Limited Whiteshell Nuclear Research Establishment Pinawa, Manitoba, Canada ROE 1LO
Get access

Abstract

The oxidation of CANDU fuel (UO2) by the alpha-radiolysis products of water has been investigated using electrochemical and X-ray photoelectron spectroscopic-experiments. Experiments with O2 and H2O2, two of the expected products of radiolysis of water, indicate that the rate of oxidation of UO2 by H2O2 is about 200 times faster than by dissolved oxygen. Oxidation by both H2O2 and O2 shows pH dependence. Possible reaction paths for the oxidation of UO2 by radiolysis products are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 50: Symposium STOCKHOLM – Scientific Basis for Nuclear Waste Management IX , 1985 , 309
Copyright
Copyright © Materials Research Society 1985

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Sunder, S., Shoesmith, D.W., Bailey, M.G., Stanchell, F.W. and McIntyre, N.S., J. Electroanal. Chem. 130, 163 (1981).Google Scholar
2. McIntyre, N.S., Sunder, S., Shoesmith, D.W. and Stanchell, F.W., J. Vac. Sci. Technol. 18, 714 (1981).CrossRefGoogle Scholar
3. Sunder, S., Shoesmith, D.W., Bailey, M.G. and Wallace, G.J., in Proc. Int. Conf. Radioactive Waste Management, Edited by Feraday, M.A. (Canadian Nuclear Society, Toronto, 1982), pp. 398–405.Google Scholar
4. Johnson, L.H., Shoesmith, D.W., Lunansky, G.E., Bailey, M.G. and Tremaine, P.R., Nucl. Tech. 56, 238 (1982).Google Scholar
5. Sunder, S., Shoesmith, D.W., Bailey, M.G. and Wallace, G.J., Electroanal. Chem. 150, 217 (1983).Google Scholar
6. Shoesmith, D.W., Sunder, S., Bailey, M.G. and Owen, D.G., Thin Films Sc. Tech. 4, 125 (1983).Google Scholar
7. Shoesmith, D.W., Sunder, S., Bailey, M.G., Wallace, G.J. and Stanchell, F.W., Applic. of Surf. Sci. 20, 39 (1984).Google Scholar
8. Burns, W.G., Hughes, A.E., Marples, J.A.C., Nelson, R.S. and Stoneham, A.M., AERE-R10189 (1981).Google Scholar
9. Bailey, M.G., Johnson, L.H. and Shoesmith, D.W., Corros. Sci. 25, 233 (1985).Google Scholar
10. Sunder, S., Shoesmith, D.W., Wallace, G.J. and Bailey, M.G., unpublished data.Google Scholar
11. Nicol, M.J. and Needes, C.R.S., Electrochimica Acta 20, 585 (1975).Google Scholar
12. Nicol, M.J. and Needes, C.R.S., The Mechanism of the Anodic Dissolution of Uranium Dioxide, Nat. Inst. Met., Repub. S. Afr. Rep. No. 7079 (1973).Google Scholar
13. Yeager, E., Electrochimica Acta 29, 1527 (1984).CrossRefGoogle Scholar
14. Genscher, R. and Genscher, H., Z. Phys. Chem. 6, 178 (1956).Google Scholar
15. Needes, C.R.S. and Nicol, M.J., A Study of Some Redox Reactions at a UO, Surface, Nat. Inst. Met. Repub. S. Afr. Rep. No. 7073 (1973).Google Scholar