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Deep oxidation/extraction desulfurization from liquid fuels had been done via choline functionalized polyoxometalates (POMs) [(CH3)3NCH2CH2OH]xNa5−xIMo6O24 (abbreviated as ChxNa5−xIMo6O24, x=1–5) and oxygen. By Ch5IMo6O24, organic sulfurs including dibenzothiophene (DBT), benzothiophene (BT), and 4, 6-dimethyldibenzothiophene (4, 6-DMDBT) could be oxidized with 99% conversion and 100% sulfone selectivity...
Acid–base bifunctional heteropolyacid (HPA) nanospheres (C6H15O2N2)3−xHxPW12O40 (abbreviated as Ly3−xHxPW) have been evaluated in cascade isomerization/dehydration of glucose to 5-hydroxymethylfurfural (HMF) or levulinic acid (LA) in choline chloride (ChCl) based on deep eutectic solvent system. Compared to other heterogeneous catalysts, the dehydration of glucose catalyzed by Ly0.5H2.5PW gave almost...
A clean, facile, economical, and environmental friendly method for converting fructose into 5-hydroymethylfurfural (HMF) has been developed, in the presence of a solid heteropolyacid Cs 2.5 H 0.5 PW 12 O 40 catalyst in a biphasic system. A 5-HMF yield of 74.0% and a higher selectivity of 94.7% were obtained in 60min at 388K. More importance is that this catalyst is...
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