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Medium acidity and catalytic properties of composite materials based on silica and titania and powder cellulose in the presence of Cu2+ ions
Authors
I. A. Grigor'ev
I. A. Kirilyuk
+5 more
E. G. Kovaleva
Yu. V. Mikushina
L. S. Molochnikov
E. V. Parshina
A. B. Shishmakov
Publication date
1 January 2011
Publisher
'Pleiades Publishing Ltd'
Abstract
Composite materials (CMs) were synthesized from silica and titania xerogels. The influence of the charged state of the CM surface on complexation with Cu2+ ions and the catalytic activity of the obtained samples in model oxidative dehydrogenation of trimethylhydroquinone with air oxygen was analyzed. Using powder cellulose in the synthesis of CMs increased the specific surface of inorganic dioxides and lowered the negative electric potential of the CM surface. This caused a redistribution of the ratio between different types of copper structures formed in the samples during the copper sorption and led to the catalytic activity of the CMs. © 2011 Pleiades Publishing, Ltd
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Last time updated on 29/10/2019