Microporous Silica-supported Poi yoxometal ate Catalyst H3PW12O400/SiO2 with High Activity for Acetal Reaction between Benzaldehyde and Ethylene Glycol

Microporous Silica-supported Poi yoxometal ate Catalyst H3PW12O400/SiO2 with High Activity for Acetal Reaction between Benzaldehyde and Ethylene Glycol

Keggin-type polyoxometalates (POMs) whose representative is H3PW12O40(PW12) exhibits a unique combination of physical and chemical properties. They have been widely used as acid catalysts in homogeneous and heterogeneous reaction systems. However, the catalytic activity of PW12 is so limited due to...

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Veröffentlicht in:Chemical research in Chinese universities 2002, Vol.18 (2), p.223-225
1. Verfasser: YANG Yulin WANG Yonghui HU Changwen WANG Enbo FENG Shouhua
Format: Artikel
Sprache:eng
Schlagworte:
12-tungstophosphoric
Acetal
acid
Catalysis
reaction
Silica-supported
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Zusammenfassung:Keggin-type polyoxometalates (POMs) whose representative is H3PW12O40(PW12) exhibits a unique combination of physical and chemical properties. They have been widely used as acid catalysts in homogeneous and heterogeneous reaction systems. However, the catalytic activity of PW12 is so limited due to its very low specific surface area (≤9 m2/g)[1] that polar molecules can only react on its surface.……
ISSN:1005-9040
2210-3171