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Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (6): 20250307.doi: 10.7503/cjcu20250307

• Physical Chemistry • Previous Articles     Next Articles

Modified Molybdenum Disulfide Catalyst for Hydrogenation of Carbon Dioxide to Methanol

CHENG Yaoyang1, LIN Weizhi1, LE Yu1, LI Songtao2, LI Rujin2, KANG Jincan1()   

  1. 1.National Engineering Laboratory for Green Chemical Productions of Alcohols?Ethers?Esters,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China
    2.China BlueChemical Ltd. ,Beijing 100029,China
  • Received:2025-10-21 Online:2026-06-10 Published:2025-12-11
  • Contact: KANG Jincan E-mail:kangjc@xmu.edu.cn
  • Supported by:
    the National Key Research and Development Program of China(2023YFB4103103);the National Natural Science Foundation of China(22372136)

Abstract:

In this paper, we reported a comprehensive study on MoS2-based catalysts and their modification for this reaction. First, the effects of different Mo and S precursors as well as hydrothermal conditions on catalytic performance were systematically screened. The optimal catalyst prepared from ammonium tetramolybdate and thiourea at 190 °C delivered a CO2 conversion of 13.7% with an exceptional CH3OH selectivity of 82.0%. Subsequent modification revealed that the introduction of Zn significantly boosts CO2 hydrogenation activity. The 1%Zn/MoS2 catalyst exhibited the best performance, achieving CO2 conversion of 14.8% and CH3OH selectivity of 90.5%. Over 150 h on-stream, the CO2 conversion remained stable, while CH3OH selectivity gradually increased and then plateaued. Characterization results showed that the hydrothermally synthesized MoS2 possessed an average layer number of ca. 5.5, indicative of few-layered nanosheets. The incorporation of Zn not only enhanced H2 activation, thereby raising CO2 conversion, but also generated additional sulfur vacancies that are beneficial for the methanol formation. These findings provide crucial guidance for the rational design of robust catalysts with simultaneously high activity, selectivity and stability for conversion of CO2 to methanol.

Key words: Carbon dioxide hydrogenation, Methanol synthesis, Molybdenum disulfide catalyst, Modified by Zn

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