authors |
Antunes, MM; Fernandes, A; Ribeiro, MF; Lin, Z; Valente, AA |
nationality |
International |
journal |
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY |
author keywords |
AM-4; Ion exchange; Base properties; Heterogeneous catalysis; Saccharide isomerization |
keywords |
LACTIC-ACID DERIVATIVES; GLUCOSE ISOMERIZATION; ALKALINE-DEGRADATION; CARBON-DIOXIDE; SN-BETA; CELLOBIOSE DECOMPOSITION; LAYERED TITANOSILICATES; LIGNOCELLULOSIC BIOMASS; HYDROTHERMAL SYNTHESIS; XYLOSE ISOMERIZATION |
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. |
publisher |
WILEY-V C H VERLAG GMBH |
issn |
1434-1948 |
isbn |
1099-0682 |
year published |
2020 |
volume |
2020 |
issue |
17 |
beginning page |
1579 |
ending page |
1588 |
digital object identifier (doi) |
10.1002/ejic.202000038 |
web of science category |
Chemistry, Inorganic & Nuclear |
subject category |
Chemistry |
unique article identifier |
WOS:000525896500001
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ciceco authors
impact metrics
journal analysis (jcr 2019):
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journal impact factor |
2.529 |
5 year journal impact factor |
2.284 |
category normalized journal impact factor percentile |
65.556 |
dimensions (citation analysis):
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altmetrics (social interaction):
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