双金属片
选择性
催化作用
硝基苯
化学
苯
苯胺
金属间化合物
无机化学
光化学
有机化学
合金
作者
А. В. Рассолов,G. Ivanov,Г. О. Брагина,Г. Н. Баева,Н. С. Смирнова,A. V. Kazakov,N. Ya. Usachev,A. Yu. Stakheev
出处
期刊:Kinetics and Catalysis
[Springer Nature]
日期:2021-09-01
卷期号:62 (5): 641-650
被引量:3
标识
DOI:10.1134/s0023158421050062
摘要
The catalytic performance of a bimetallic RhIn/SiO2 catalyst was studied in the liquid-phase hydrogenation of nitrobenzene. The formation of intermetallic Rh1In1 nanoparticles was revealed by X-ray diffraction (XRD) analysis and confirmed by transmission electron microscopy (TEM) and IR spectroscopy of adsorbed CO. It was shown that, in comparison with monometallic Rh/SiO2, the hydrogenation of nitrobenzene on the RhIn/SiO2 catalyst proceeded at a higher rate and with higher selectivity. In contrast to the monometallic catalyst, the formation of by-products and the hydrogenation of the benzene ring did not proceed on the intermetallic sample. It was assumed that the higher selectivity of RhIn/SiO2 can be associated both with a change in the electronic state of Rh atoms and with the geometry of the active sites.
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