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Chemoselective Hydrogenation of Cinnamaldehyde on Iron‐Oxide Modified Pt/MoO3−y Catalysts
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2018-10-19 , DOI: 10.1002/asia.201801281
Yijin Shu 1 , Ting Chen 1 , Hang Cheong Chan 1 , Lifang Xie 1 , Qingsheng Gao 1
Affiliation  

Hydrogenation of α,β‐unsaturated aldehydes to unsaturated alcohols suffers a huge challenge in chemoselectivity. Herein, surface decoration by FeOx is introduced to remarkably improve the selectivity of cinnamyl alcohol (COL) in cinnamaldehyde (CAL) hydrogenation on Pt/MoO3−y. The enhanced acidity on Pt–FeOx interfaces is beneficial for the chemisorption and activation of C=O bonds, promoting selective hydrogenation. The optimal catalysts with defined FeOx decoration afford efficient and chemoselective CAL hydrogenation (91.3 % selectivity) under mild conditions (PH2=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.

中文翻译:

氧化铁修饰的Pt / MoO3-y催化剂上肉桂醛的化学选择性加氢

α,β-不饱和醛加氢成不饱和醇在化学选择性方面面临巨大挑战。在此,引入了通过FeO x进行的表面装饰,以显着提高肉桂醇(COL)在Pt / MoO 3-y上的肉桂醛(CAL)加氢中的选择性。Pt–FeO x界面上增强的酸度有利于C = O键的化学吸附和活化,从而促进选择性氢化。具有确定的FeO x修饰的最佳催化剂可在温和条件下(P H2 = 1 MPa,T =30°C)。此外,这种创新进一步扩展到开发其他有效的金属(Ir,Rh和Pd)催化剂,确定了对Pt类金属的普遍推广。预期这项工作将通过有效的表面/界面工程激发高性能催化剂的合理设计。
更新日期:2018-10-19
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