Coupled Co-Doped MoS2 and CoS2 as the Dual-Active Site Catalyst for Chemoselective Hydrogenation

Bin Chen; Qicheng Zhang; Pengwei Zhao; Mingjun Cen; Yue Song; Weipeng Zhao; Wenchao Peng; Yang Li; Fengbao Zhang; Xiaobin Fan

doi:10.1021/acsami.2c19069

Coupled Co-Doped MoS₂ and CoS₂ as the Dual-Active Site Catalyst for Chemoselective Hydrogenation

ACS Appl Mater Interfaces. 2023 Jan 11;15(1):1317-1325. doi: 10.1021/acsami.2c19069. Epub 2022 Dec 21.

Authors

Bin Chen¹, Qicheng Zhang¹, Pengwei Zhao¹, Mingjun Cen¹, Yue Song¹, Weipeng Zhao¹, Wenchao Peng¹, Yang Li¹, Fengbao Zhang¹, Xiaobin Fan^{1

2

3}

Affiliations

¹ School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin300072, China.
² Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China.
³ Institute of Shaoxing, Tianjin University, Zhejiang312300, China.

PMID: 36542820
DOI: 10.1021/acsami.2c19069

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 (H_a) to Co-doped MoS₂ by the coupling interface. By matching the production and consumption rates of H_a, the maximization of the reaction yield was achieved. This work may promote the study of MoS₂-based catalysts for chemoselective hydrogenation.

Keywords: Co-doped; CoS2; MoS2; chemoselective hydrogenation; coupling interface.