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Journal of Radioanalytical and Nuclear Chemistry

, Volume 116, Issue 2, pp 325–331 | Cite as

A study of the self-diffusion coefficients of Sr2+ in hydrated ceria and zirconia as a function of variable strontium ion capacity

  • I. M. El-Naggar
  • H. B. Maghrawy
Article

Abstract

Cation self-diffusion studies have been carried out by using the radiochemical technique for strontium ion in both hydrated ceria and zirconia. The particles of these exchangers are shown to behave as variable capacity ion exchangers. Self-diffusion coefficients for strontium ion were measured as a function of the variable capacity for that ion in solutions of varying acidity. The results are shown to be in qualitative agreement with the absolute rate theory. Also, it is shown that the measured self-diffusion coefficients are dependent only upon the total strontium ion capacity.

Keywords

Zirconia Hydrated Acidity Ceria Strontium 
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Copyright information

© Akadémiai Kiadó 1987

Authors and Affiliations

  • I. M. El-Naggar
    • 1
  • H. B. Maghrawy
    • 1
  1. 1.Nuclear Chemistry Department, Nuclear Research CentreAtomic Energy EstablishmentCairo(Egypt)

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