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Research article - Peer-reviewed, 2004

Nanomaterials prepared from Re-Mo oxomethoxide binuclear complexes and zeolites: Synthesis and physicochemical properties

Kustov AL, Kessler VG, Romanovskii BV, Seisenbaeva GA, Drobot DV, Shcheglov PA

Abstract

Rhenium and molybdenum oxide clusters were synthesized from the Re2O3(OMe)(6), ReMoO2(MeO)(7), and Mo2O2(OMe)(8) oxomethoxide complexes. The nanomaterials obtained were studied by the FTIR, DTA, EXAFS, and H-2-TPR techniques. It was established that, in microporous NaY zeolite, the oxomethoxide, complexes lose their ligands, so that only metal suboxide cores penetrate into the intracrystalline space, where they reside as nanosized clusters. It was found that the reduction of the clusters depends strongly on their size and the location in the matrix. The matrix environment also affects the transitions between different oxidation states of Re and Mo and the degree of reduction of their oxides

Published in

Russian Journal of Physical Chemistry A, Focus on Chemistry / Zhurnal fizicheskoi khimii
2004, Volume: 78, pages: S63-S67
Publisher: INTERPERIODICA