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

doi:10.1016/j.cjche.2021.11.027

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 Lei^1,3, Peng Wang², Shuang Wang^2,4, Jinping Li⁴, Yongping Xu³, Shuying Li³

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 Lei^1,3, Peng Wang², Shuang Wang^2,4, Jinping Li⁴, Yongping Xu³, Shuying Li³

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/Abstract

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-Co_aMn_bO_x, with enhanced catalytic properties compared with that of M-Co₃O₄, were successfully prepared through pyrolysis of Mn-doped Co-MOF. The as-synthesized M-Co₁Mn₁O_x (Co:Mn = 1:1) exhibits an optimal catalytic activity with 90% toluene conversion reached at 227 ℃, which benefits from the increase of Co³⁺, O_ads 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-Co₁Mn₁O_x 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-Co_aMn_bO_x, with enhanced catalytic properties compared with that of M-Co₃O₄, were successfully prepared through pyrolysis of Mn-doped Co-MOF. The as-synthesized M-Co₁Mn₁O_x (Co:Mn = 1:1) exhibits an optimal catalytic activity with 90% toluene conversion reached at 227 ℃, which benefits from the increase of Co³⁺, O_ads 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-Co₁Mn₁O_x 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

Juan Lei, Peng Wang, Shuang Wang, Jinping Li, Yongping Xu, Shuying Li. Enhancement effect of Mn doping on Co₃O₄ derived from Co-MOF for toluene catalytic oxidation[J]. 中国化学工程学报, 2022, 52(12): 1-9.

Juan Lei, Peng Wang, Shuang Wang, Jinping Li, Yongping Xu, Shuying Li. Enhancement effect of Mn doping on Co₃O₄ derived from Co-MOF for toluene catalytic oxidation[J]. Chinese Journal of Chemical Engineering, 2022, 52(12): 1-9.

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

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

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