Publication Type Journal Article
Title Modified Versions of AM-4 for the Aqueous Phase Isomerization of Aldo-Saccharides
Authors Margarida M. Antunes Auguste Fernandes Filipa Ribeiro Zhi Lin Anabela A. Valente
Groups Chem4Env
Journal EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Year 2020
Month May
Volume 2020
Number 17
Pages 1579-1588
Abstract The isomerization of aldo-saccharides to keto-saccharides is an important transformation in biomass conversion processes. The use of eco-friendly heterogeneous catalysts for these reactions is most attractive, albeit good catalytic stability continues a challenge. The as-synthesized Aveiro-Manchester material number 4 (AM-4, Na-3(Na,H)Ti2O2[Si2O6](2),2H(2)O) possessed isomerization activity, but limited stability. This versatile precursor material was modified to meet superior performances in the base-catalyzed isomerization of the monosaccharides d-glucose and d-xylose, and the disaccharide d-cellobiose, at 100 degrees C. Different alkali and alkaline-earth metals were introduced into AM-4, which influenced the catalytic properties. The Mg-containing material was the most stable, leading to 27 \% fructose yield from d-glucose, 41 \% cellobiulose from d-cellobiose and 39 \% xylulose from d-xylose isomerization, at 2 h reaction.
DOI http://dx.doi.org/10.1002/ejic.202000038
ISBN
Publisher
Book Title
ISSN 1434-1948
EISSN 1099-0682
Conference Name
Bibtex ID ISI:000525896500001
Observations
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