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Fabrication of micellar heteropolyacid catalysts for clean production of monosaccharides from polysaccharides

Paper ID Volume ID Publish Year Pages File Format Full-Text
50324 46789 2011 5 PDF Available
Title
Fabrication of micellar heteropolyacid catalysts for clean production of monosaccharides from polysaccharides
Abstract

A micellar heteropolyacids (HPAs) catalyst had been prepared using surfactant cetyltrimethyl ammonium bromide (CTAB) and H3PW12O40 as precursors. These micellar [C16H33N(CH3)3]xH3 − xPW12O40 had been characterized to be micellar structure and the catalytic activity was evaluated by the hydrolysis of polysaccharides to the reducing sugars. The best catalytic activity was obtained over [C16H33N(CH3)3]H2PW12O40 (abbreviated as (C16TA)H2PW), which showed 100% conversion and 99.6% selectivity within 60 min at 80 °C for hydrolysis of sucrose. And it was also active for the conversion of starch and cellulose. The leaching test showed that the HPA micellar catalysts have an excellent stability and can be used as heterogeneous catalysts for six times.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► Assembly of HPAs into micellar system with Brønsted acidity. ► Overcoming the diffusion in solid-solid reactions and promoting the reaction rate. ► Easily handing of this catalyst and could be reused about six times.

Keywords
Heteropolyacids; Micellar catalysis; Polysaccharides; Hydrolysis; Monosaccharides
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Fabrication of micellar heteropolyacid catalysts for clean production of monosaccharides from polysaccharides
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 15, 15 September 2011, Pages 1483–1487
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us