SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 44 ›› Issue (4): 392-401.DOI: 10.1016/j.cjche.2021.02.026

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A facile preparation of hausmannite as a high-performance catalyst for toluene combustion

Qi Liu, Gao Cheng, Ming Sun, Weixiong Yu, Xiaohong, Zeng, Shichang Tang, Yongfeng li, Lin Yu   

  1. School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China
  • 收稿日期:2020-12-09 修回日期:2021-02-07 出版日期:2022-04-28 发布日期:2022-06-18
  • 通讯作者: Lin Yu,E-mail:gych@gdut.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (Nos. 21306026, 21576054), Natural Science Foundation of Guangdong Province (No. 2018A030310563), and the Foundation of Higher Education of Guangdong Province (2018KZDXM031).

A facile preparation of hausmannite as a high-performance catalyst for toluene combustion

Qi Liu, Gao Cheng, Ming Sun, Weixiong Yu, Xiaohong, Zeng, Shichang Tang, Yongfeng li, Lin Yu   

  1. School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2020-12-09 Revised:2021-02-07 Online:2022-04-28 Published:2022-06-18
  • Contact: Lin Yu,E-mail:gych@gdut.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos. 21306026, 21576054), Natural Science Foundation of Guangdong Province (No. 2018A030310563), and the Foundation of Higher Education of Guangdong Province (2018KZDXM031).

摘要: Mesoporous transition metal oxide catalysts are well-used in the elimination of volatile organic compounds. In this study, we developed an efficient method for the preparation of mesoporous-Mn3O4 (m-Mn3O4) without the use of templates or surfactants. In this method, KCl protects oxygen defects on the surface of fresh Mn3O4 crystallites. m-Mn3O4 shows higher ameliorative catalytic activity than bulk-Mn3O4 (b-Mn3O4) and calcined-Mn3O4 (c-Mn3O4), achieving toluene catalytic oxidation of T10 and T90 (the temperature at a conversion rate of about 10% and 90%) at 191 ℃ and 230 ℃, respectively (WHSV = 40,000 ml·g-1·h-1). Based on various characterizations, the prepared m-Mn3O4 has large specific surface area and abundant oxygen defects, and thus can provide more surface active sites, which give it superior toluene combustion activity.

关键词: Catalysis, Nanomaterials, Environment, Toluene, Solvents, Mn3O4

Abstract: Mesoporous transition metal oxide catalysts are well-used in the elimination of volatile organic compounds. In this study, we developed an efficient method for the preparation of mesoporous-Mn3O4 (m-Mn3O4) without the use of templates or surfactants. In this method, KCl protects oxygen defects on the surface of fresh Mn3O4 crystallites. m-Mn3O4 shows higher ameliorative catalytic activity than bulk-Mn3O4 (b-Mn3O4) and calcined-Mn3O4 (c-Mn3O4), achieving toluene catalytic oxidation of T10 and T90 (the temperature at a conversion rate of about 10% and 90%) at 191 ℃ and 230 ℃, respectively (WHSV = 40,000 ml·g-1·h-1). Based on various characterizations, the prepared m-Mn3O4 has large specific surface area and abundant oxygen defects, and thus can provide more surface active sites, which give it superior toluene combustion activity.

Key words: Catalysis, Nanomaterials, Environment, Toluene, Solvents, Mn3O4