EPR studies of the formation mechanism of the mesoporous materials MCM-41

Jingyan Zhang, H. Zimmermann, Zeev Luz, Daniella Goldfarb

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The formation mechanism of MCM-41 was investigated by in situ EPR spectroscopy using spin-probes and the location of the spin-label in the organic-inorganic interfaces was established using electron spin echo envelope modulations. It is found that the EPR line-shapes is highly sensitive to the progress of the reaction, and the mobility of the spin-probe is significantly restricted as the silicate ions polymerize at the interface. The long range ordering is established rather rapidly, while the condensation process is significantly slower.

Original languageEnglish (US)
Pages (from-to)535-542
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume117
DOIs
StatePublished - 1998
Externally publishedYes

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