Chemoselective Hydrogenation of Cinnamaldehyde on Iron-Oxide Modified Pt/MoO3-y Catalysts

Yijin Shu; Ting Chen; Hang Cheong Chan; Lifang Xie; Qingsheng Gao

doi:10.1002/asia.201801281

Chemoselective Hydrogenation of Cinnamaldehyde on Iron-Oxide Modified Pt/MoO_3-y Catalysts

Chem Asian J. 2018 Dec 4;13(23):3737-3744. doi: 10.1002/asia.201801281. Epub 2018 Oct 19.

Authors

Yijin Shu¹, Ting Chen¹, Hang Cheong Chan¹, Lifang Xie¹, Qingsheng Gao¹

Affiliation

¹ Department of Chemistry, College of Chemistry and Materials Science, Jinan University, No. 601 Huangpu Avenue West, 510632, Guangzhou, P. R. China.

PMID: 30232843
DOI: 10.1002/asia.201801281

Abstract

Hydrogenation of α,β-unsaturated aldehydes to unsaturated alcohols suffers a huge challenge in chemoselectivity. Herein, surface decoration by FeO_x is introduced to remarkably improve the selectivity of cinnamyl alcohol (COL) in cinnamaldehyde (CAL) hydrogenation on Pt/MoO_3-y . The enhanced acidity on Pt-FeO_x interfaces is beneficial for the chemisorption and activation of C=O bonds, promoting selective hydrogenation. The optimal catalysts with defined FeO_x decoration afford efficient and chemoselective CAL hydrogenation (91.3 % selectivity) under mild conditions (P_H2 =1 MPa, T=30 °C). Moreover, such innovation is further extended to develop other efficient metal (Ir, Rh and Pd) catalysts, identifying a universal promotion to Pt-group metals. This work is anticipated to inspire the rational design of high-performance catalysts via effective surface/interface engineering.

Keywords: chemoselectivity; hydrogenation; interfaces; metal-support interactions; surface acidity.

Abstract

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