Water complexed Mn2+ as a probe in the ESR study of Silica glasses obtained by the Sol-Gel process

N. Abidi, B. Deroide, J. V. Zanchetta

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Mn2+ ions have been incorporated in silica gel in order to follow the evolution of the ESR spectra during the formation of xerogels and to study the nature of their interaction with the glassy network. The breadth of hyperfine lines is sensitive both to the heat treatment and the ageing of the xerogels. Important modifications are due to changes in the water pressure. The results are indicative of the interactions between the probe and the surface of the pores. A simple ESR method for evaluating the dimension of the pores is proposed.

Original languageEnglish
Pages (from-to)505-514
Number of pages10
JournalNukleonika
Volume42
Issue number2
StatePublished - 1997

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