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Chromium(VI) supported and entrapped on silica and zirconia as recyclable materials for oxidation of alcohols

✍ Scribed by Michelangelo Gruttadauria; Leonarda F Liotta; Giulio Deganello; Renato Noto

Book ID: 104205420
Publisher: Elsevier Science
Year: 2003
Tongue: French
Weight: 126 KB
Volume: 59
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(03)00756-7

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✦ Synopsis

Oxidation of alcohols have been realized with Cr(VI) oxide supported or entrapped, via sol-gel methodology, on silica and zirconia. These materials were easily recovered from the reaction mixture without leaching of chromium in solution. Moreover, recycling studies have indicated that they can be regenerated by calcinations at 400-6008C or by treatment with ozone at room temperature. In the case of Cr(VI) entrapped into silica matrix up to 18 oxidation cycles have been realized without loss in activity.

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