催化作用
选择性
溶剂
基质(水族馆)
铂金
纳米颗粒
化学
金属
乙醇
相(物质)
材料科学
化学工程
组合化学
核化学
有机化学
纳米技术
海洋学
地质学
工程类
作者
Charline Berguerand,Artur Yarulin,Fernando Cárdenas‐Lizana,Johan Wärnå,Esther M. Sulman,Dmitry Yu. Murzin,Lioubov Kiwi‐Minsker
标识
DOI:10.1021/acs.iecr.5b02113
摘要
Hydrogenation of 3-nitrostyrene was performed at T = 348 K and 10 bar over platinum nanoparticles supported on several metal oxides. Pt/Al2O3 and Pt/C catalysts exhibited high activity giving 3-ethylaniline as the only product, while Pt/ZnO displayed high selectivity toward target 3-vinylaniline at close to full substrate conversion due to PtZn alloy formation. The catalyst also showed a robust behavior without detectable catalyst deactivation in repeated reaction runs. The most suitable solvent for this reaction was ethanol. Kinetic modeling for nitrostyrene hydrogenation was successfully performed based on the proposed parallel-consecutive reaction network. Application of Pt/ZnO for hydrogenation of various 3-substituted (−CH3, −H, −Cl, −Br, −CHCH2, −COOH, and −NO2) nitroarenes resulted in almost exclusive formation of the corresponding amino-compounds.
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