posted on 2022-12-21, 21:03authored byBin Chen, Qicheng Zhang, Pengwei Zhao, Mingjun Cen, Yue Song, Weipeng Zhao, Wenchao Peng, Yang Li, Fengbao Zhang, Xiaobin Fan
Catalytic hydrogenation plays an important role in the
industrial
production of fine chemicals. Herein, we report a Co-doped MoS2 and CoS2 composite with a coupling interface and
successfully apply it for the chemoselective hydrogenation of p-chloronitrobenzene to p-chloroaniline.
The target catalyst 0.5CoMoS has ∼100% conversion and ∼100%
selectivity. Experiments and theoretical calculations reveal that
CoS2 is more favorable for adsorbing and activating H2 and provides active hydrogen (Ha) to Co-doped
MoS2 by the coupling interface. By matching the production
and consumption rates of Ha, the maximization of the reaction
yield was achieved. This work may promote the study of MoS2-based catalysts for chemoselective hydrogenation.