SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 52 ›› Issue (12): 1-9.DOI: 10.1016/j.cjche.2021.11.027

• Full Length Article •    下一篇

Enhancement effect of Mn doping on Co3O4 derived from Co-MOF for toluene catalytic oxidation

Juan Lei1,3, Peng Wang2, Shuang Wang2,4, Jinping Li4, Yongping Xu3, Shuying Li3   

  1. 1. Department of Environmental and Safety Engineering, Taiyuan Institute of Technology, Taiyuan 030018, China;
    2. College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, China;
    3. Dalian Syme Bioengineering Technology Limited Company, Dalian 045099, China;
    4. Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China
  • 收稿日期:2021-07-23 修回日期:2021-10-26 出版日期:2022-12-28 发布日期:2023-01-31
  • 通讯作者: Shuang Wang,E-mail:wangshuang@tyut.edu.cn;Jinping Li,E-mail:jpli211@hotmail.com
  • 基金资助:
    The authors acknowledge the financial support of National Natural Science Foundation of China (Nos. 22078215, 21671147), Natural Science Foundation of Shanxi Province (No. 201901D211117), Coal Bed Methane Joint Foundation of Shanxi (No. 2016012004), Science and Technology Innovation Project of Higher Education Department of Shanxi Province (No. 2020L0632). Young Academic Leaders Funding Program of Taiyuan Institute of Technology (No. 2020×S03), the Shanxi Province Natural Science Foundation for Youths (202103021223347), and the Taiyuan Institute of Technology Scientific Research Initial Funding (2022KJ010).

Enhancement effect of Mn doping on Co3O4 derived from Co-MOF for toluene catalytic oxidation

Juan Lei1,3, Peng Wang2, Shuang Wang2,4, Jinping Li4, Yongping Xu3, Shuying Li3   

  1. 1. Department of Environmental and Safety Engineering, Taiyuan Institute of Technology, Taiyuan 030018, China;
    2. College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, China;
    3. Dalian Syme Bioengineering Technology Limited Company, Dalian 045099, China;
    4. Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2021-07-23 Revised:2021-10-26 Online:2022-12-28 Published:2023-01-31
  • Contact: Shuang Wang,E-mail:wangshuang@tyut.edu.cn;Jinping Li,E-mail:jpli211@hotmail.com
  • Supported by:
    The authors acknowledge the financial support of National Natural Science Foundation of China (Nos. 22078215, 21671147), Natural Science Foundation of Shanxi Province (No. 201901D211117), Coal Bed Methane Joint Foundation of Shanxi (No. 2016012004), Science and Technology Innovation Project of Higher Education Department of Shanxi Province (No. 2020L0632). Young Academic Leaders Funding Program of Taiyuan Institute of Technology (No. 2020×S03), the Shanxi Province Natural Science Foundation for Youths (202103021223347), and the Taiyuan Institute of Technology Scientific Research Initial Funding (2022KJ010).

摘要: The design of Co-Mn composite oxides catalysts derived from MOF is significant for catalytic combustion of toluene. Here, a series of M-CoaMnbOx, with enhanced catalytic properties compared with that of M-Co3O4, were successfully prepared through pyrolysis of Mn-doped Co-MOF. The as-synthesized M-Co1Mn1Ox (Co:Mn = 1:1) exhibits an optimal catalytic activity with 90% toluene conversion reached at 227 ℃, which benefits from the increase of Co3+, Oads and the synergistic effect between Mn and Co. According to the analysis of the in situ diffuse reflectance infrared Fourier transform spectroscopy, toluene could be degraded easier on M-Co1Mn1Ox with lower activation energy than M-Co3O4. The main intermediate products are benzaldehyde, benzoic acid, anhydride, and maleate species. Those findings reveal the value of Mn doping for improved activity of toluene oxidation on MOF derived Co3O4, which provide a feasible method for the construction of toluene-oxidation catalysts.

关键词: Toluene, Catalytic oxidation, Co-MOF, Doping, Co-Mn

Abstract: The design of Co-Mn composite oxides catalysts derived from MOF is significant for catalytic combustion of toluene. Here, a series of M-CoaMnbOx, with enhanced catalytic properties compared with that of M-Co3O4, were successfully prepared through pyrolysis of Mn-doped Co-MOF. The as-synthesized M-Co1Mn1Ox (Co:Mn = 1:1) exhibits an optimal catalytic activity with 90% toluene conversion reached at 227 ℃, which benefits from the increase of Co3+, Oads and the synergistic effect between Mn and Co. According to the analysis of the in situ diffuse reflectance infrared Fourier transform spectroscopy, toluene could be degraded easier on M-Co1Mn1Ox with lower activation energy than M-Co3O4. The main intermediate products are benzaldehyde, benzoic acid, anhydride, and maleate species. Those findings reveal the value of Mn doping for improved activity of toluene oxidation on MOF derived Co3O4, which provide a feasible method for the construction of toluene-oxidation catalysts.

Key words: Toluene, Catalytic oxidation, Co-MOF, Doping, Co-Mn