Catalytic performance of FeMn-based monolithic catalysts for toluene and chlorobenzene catalytic combustion [铁锰基整体式催化剂催化燃烧甲苯和氯苯性能]

作者：Wang X.-Q.; Yang N.; Xu L.; Li X.-P.; Wang Y.

来源：China Environmental Science, 2022, 42(7): 3084-3092.

• catalytic oxidation
• cordierite
• FeMn
• universality
• VOCs

This research compared a series of FeMn-based monolithic catalysts prepared by incipient impregnation, ultrasonic-assisted impregnation and redox-precipitation. These catalysts were characterized by various techniques such as BET, SEM, XRD, H2-TPR and XPS. The results suggested that the redox-precipitation sample owned layered structure, which exposed larger specific surface area and more active site. In addition, the reduction temperature of the redox-precipitation sample was the lowest and Mn4+ content was the highest among the samples, which enhanced its catalytic performance. The redox-precipitation sample had the best catalytic performance for toluene and chlorobenzene combustion, its T50 /T90 of toluene were 200℃ and 270℃, and the T50/T90 of chlorobenzene were 261℃ and 320℃, respectively. Meanwhile, its stability was also preferable than the other samples.

• 单位
  武汉科技大学