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A study of the self-diffusion of sodium and cesium ions in hydrous ceria as a function of ion exchange capacity

✍ Scribed by Nasr Z. Misak; I.M. El-Naggar

Publisher
Elsevier Science
Year
1989
Weight
405 KB
Volume
10
Category
Article
ISSN
0923-1137

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✦ Synopsis

Self-diffusion of

Na + and Cs + in hydrous ceria heated at 50, 200 and 400Β°C was studied.

In all cases, the mobility decreases with increasing heating temperature and ion exchange capacity. The self-diffusion coefficient of Cs + in ceria heated at 200 and 400 o C is lower than that of Na Γ· at relatively high capacities. In the other cases, this coefficient is about the same for the two ions. Tentative explanations are given for these results.

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