Preparation of Pt/γ-Al2O3-C heterogeneous catalyst for highly selective hydrogenation of cinnamaldehyde towards cinnamyl alcohol

Ma, Jun; Yang, Lan; Mao, Hui; Liao, Yang; Zhao, Shilin

doi:10.1007/s40242-017-6345-1

Cited by 4 publications

(2 citation statements)

References 23 publications

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“…The reason may be that Al 2 O 3 as Lewis acid (electron acceptor), can provided more sites to accept electron, especially in the vicinity of the Pt nanoparticles. It is beneficial for CAL adsorption through the interaction of their polar carbonyl function (C=O) ,. This adsorption mode can assist in the preferential formation of alcohols on 4% Pt/Al 2 O 3 .…”

Section: Resultsmentioning

confidence: 99%

“…As a typical α, β‐unsaturated aldehydes, cinnamaldehyde (CAL) forms a conjugated system with C=C and C=O double bonds, which show high selectivity in hydrogenation reaction . Cinnamyl alcohol (COL), hydrocinnamaldehyde (HCAL), and hydrocinnamyl alcohol (HCOL) are the main products due to different hydrogenation position on CAL (Scheme ) .…”

Section: Introductionmentioning

confidence: 99%

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Hydrogenation of Cinnamaldehyde to Hydrocinnamyl Alcohol on Pt/Graphite Catalyst

Chang

Meng

et al. 2019

ChemistrySelect

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Chemoselectivity is a cornerstone of catalysis, permitting the targeted modification of specific functional groups within complex starting materials. Herein, we elucidate key structural and electronic factors in converting cinnamaldehyde to related hydrocinnamyl alcohol over Pt/graphite composites. Pt/graphite composites were prepared by a facile hydrothermal method, and performed excellent catalytic performance and selectivity in cinnamaldehyde conversion. When the ratio of Pt loading reaches 4%, cinnamaldehyde conversion is 97.3%, and the yield of hydrocinnamyl alcohol is 94.6%, with the selectivity high to 97.2%. Besides graphite, other support materials (BN, SiO2, TiO2, Al2O3, activated carbon, graphene and g‐C3N4), are also investigated to probe the reaction mechanism. This work indicates that the chemoselective hydrogenation of cinnamaldehyde over supported Pt catalyst can be flexibly controlled by tuning Pt loading amount and support materials.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%