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Electrochemical influences of vitreous leached surfaces

Conference ·
OSTI ID:6242136
Correlation of leached layer surface composition and measured surface potentials for simple glasses and waste glasses indicate that the important components of the leached layers are bound to the surface by electrostatic interactions. Site-binding electrical double layer models can also be applied to radionuclide adsorption onto geologic media since any solid immersed in an electrolyte (simulated groundwater) has a surface charge. Since adsorption of multivalent elements such as Fe, Mn, Tc, Np, Pu, and U are redox sensitive, the surface chemistry and the leaching mechanisms of the waste form and the geologic media are sensitive to the oxygen content of the groundwater. 12 references, 16 figures, 2 tables.
Research Organization:
Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
DOE Contract Number:
AC09-76SR00001
OSTI ID:
6242136
Report Number(s):
DP-MS-83-130; CONF-840440-7; ON: DE85000766
Country of Publication:
United States
Language:
English