Catalytic oxidation of toluene over Co-modified manganese oxide octahedral molecular sieves (OMS-2) synthesized by different methods

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Lin, Yue^1 ; Minghua, Hu^1 ; Jvcheng, Guo^1 ; Ziqin, Xu^1

Hubei Key Laboratory of Industrial Fume and Dust Pollution Control, School of Chemistry and Environmental Engineering, Jianghan University, Wuhan, Hubei

430056, China^1

关键词: Catalytic oxidation of toluene;    Catalytic performance;    Impregnation methods;    Ion-exchange methods;    Manganese oxide octahedral molecular sieves;    Oxidation of toluenes;    Preparation method;    Toluene conversion;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/3/032017/pdf
DOI  :  10.1088/1757-899X/392/3/032017

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Co/OMS-2 catalysts were prepared by different preparation methods, and their catalytic performance was investigated for the oxidation of toluene. The catalytic activity was revealed as sequence: OMS-2 > Co/OMS-2(one step method) >Co/OMS-2(impregnation method) > Co/OMS-2(ion exchange method), and the over performances of the different methodologies are quite similar to each other. It was found that OMS-2 achieved 90% toluene conversion at 225 °C. The decrease of catalytic performance over Co-containing catalysts originates from lower reducibility as well as the oxygen mobility on the surface of the Co/OMS-2 catalyst.