Yi Zhao, Xue Sun, Qingqing Gu, Dong Wang, Bing Yang, Jing Xu, Ying Zhang, Chengsi Pan, Yongfa Zhu, Yang Lou
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引用次数: 0
Abstract
Selective hydrogenation of nitroarenes to produce functionalized anilines is highly important to synthesize fine and bulk chemicals, but it remains challenging to achieve high selectivity at room temperature. Here, we report that a steric-confinement Rh dual atom catalyst is constructed by anchoring dual Rh atoms on the edge Mo vacancies of thin-layered MoS2 nanosheets (Rh2/MoS2 dual atom catalyst), which shows excellent catalytic conversion (100%) and selectivity (100%) for the selective hydrogenation of a family of nitroarene derivatives to functionalized anilines at room temperature. Extensive experimental characterizations and theoretical calculations indicate that the steric-confinement Rh2 atoms, maintaining an exact metal–metal separation of 3.5 Å, facilitate spatially matched adsorption of the nitro group through a bidentate configuration. This significantly enhances the reactivity of nitro groups and drives the selective synthesis of functionalized anilines. The approach of employing bimetallic atoms to construct edge-confined active sites, as reported in this study, paves the way to develop highly selective catalysts for the targeted hydrogenation of nitroarenes.
期刊介绍:
ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.