Abstract
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.
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