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We report about the characterization of an isomorphously substituted Fe-MCM-22 sample with high iron content (Si/Fe=18) using FTIR, XANES and EXAFS spectroscopies. Template burning and subsequent activation in vacuo caused the migration of a fraction of framework Fe 3+ species to extraframework positions, accompanied by the reduction of a fraction of Fe 3+ to Fe 2+ . A fraction...
After a brief overview of the reasons why, in spite of the high fraction of framework Ti(IV) atoms, Engelhard titanosilicate (ETS-10) cannot be used as competitive catalyst in partial oxidation reactions, we draw the attention on the fact that the high cation density of ETS-10 can be the key property for potential new catalytic applications of this recent material. Among all, cation exchange with...
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