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Tuning catalytic selectivity of liquid-phase hydrogenation of furfural via synergistic effects of supported bimetallic catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
39142 45808 2015 7 PDF Available
Title
Tuning catalytic selectivity of liquid-phase hydrogenation of furfural via synergistic effects of supported bimetallic catalysts
Abstract

•Selectivity of furfural hydrogenation is tuned via bimetallic synergistic effect.•Total hydrogenation is facilely achieved over Ni–Pd (5:1)/TiO2–ZrO2.•Ni–Pd synergistic effect works in a hydrogen transfer mechanism.•Pt–Re bimetallic catalyst is highly active for partial hydrogenation.

Bimetallic catalysts supported over TiO2–ZrO2 binary oxides were prepared by co-impregnation methods and used for catalyzing liquid-phase hydrogenation of furfural. Highly selective hydrogenation catalysts can be developed based on bimetallic synergistic effect. The coexistence of small proportion of palladium with supported nickel species greatly improves the catalytic performance and transfer the reaction selectivity from partial hydrogenation to total hydrogenation. The catalyst with Ni–Pd mole ratio of 5:1 shows the best performance. The yield of tetrahydrofurfuryl alcohol (THFA) reaches 93.4%. Ni–Pd synergistic effect is interpreted through XPS measurement and a hydrogen-transfer mechanism is proposed. Pt–Re bimetallic catalyst is an excellent partial hydrogenation catalyst for furfural conversion. Furfural can be totally converted and the selectivity of partial hydrogenation product (FA) reaches 95.7%. When rhenium oxide species are located on the Pt surface, the hydrogen species on Pt are transferred to adsorbed CO bond to achieve selective hydrogenation.

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Keywords
Bimetallic catalysts; Synergistic effect; Hydrogenation; Furfural; Catalytic selectivity
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Tuning catalytic selectivity of liquid-phase hydrogenation of furfural via synergistic effects of supported bimetallic catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 500, 5 July 2015, Pages 23–29
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