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Direct conversion of cellulose into sorbitol with high yield by a novel mesoporous niobium phosphate supported Ruthenium bifunctional catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
40329 45850 2013 7 PDF Available
Title
Direct conversion of cellulose into sorbitol with high yield by a novel mesoporous niobium phosphate supported Ruthenium bifunctional catalyst
Abstract

•Dual-functionalized catalyst with porous niobium phosphate and Ru NP was prepared.•The catalyst showed high yield for the conversion of cellulose into sorbitol.•The catalytic activity was related to the total acid amount of the catalyst.•The catalyst showed excellent stability after repeated uses.

A novel mesoporous niobium phosphate supported Ruthenium (Ru/NbOPO4) catalyst was prepared for the selective conversion of cellulose to sorbitol. In this study, the influence of reaction temperature, hydrogen pressure, reaction time and the amounts of Ru loading was systematically investigated. The results showed that high yield of sorbitol about 59–69% with above 90% cellulose conversion was obtained due to synergic effect between acid sites and Ru nanoparticles (Ru NPs) over Ru/NbOPO4 catalyst. In the process of cellulose to sorbitol, NbOPO4 promoted the conversion from cellulose to glucose via hydrolysis and Ru NPs catalyzed the generated glucose into sorbitol via hydrogenation. This novel catalyst was demonstrated to be stable after four cycles only with slight loss in catalytic activity. The characterization data showed that the total acid amount of the solid catalyst was important for the sorbitol formation and the catalyst with high acid amount was more favorable for sorbitol production.

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Keywords
Cellulose hydrolysis; Niobium phosphate; Solid acid; Hydrogenation; Sorbitol
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Direct conversion of cellulose into sorbitol with high yield by a novel mesoporous niobium phosphate supported Ruthenium bifunctional catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 459, 24 May 2013, Pages 52–58
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
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Any Questions? feel free to contact us