钴、锰基金属氧化物催化剂去除甲苯研究进展

Research progress on the Co-and Mn-based metal oxide catalysts for toluene pollution control

综述了催化氧化去除甲苯的研究进展,重点论述了Co、Mn基金属氧化物催化剂去除甲苯的最新研究进展及其催化剂的结构形态效应。从合成条件、制备方法、载体、助剂、双金属之间的协同作用等方面总结了Co、Mn基催化剂的甲苯氧化催化性能,分析了催化剂的物理结构、表界面结构、活性组分分散度的结构形态效应,概述了催化氧化甲苯的反应机理。掺杂合适比例的双金属可以调变单金属氧化物催化剂的活性氧物种含量、还原性以及增强双金属间协同作用;通过调控不同的合成条件或方法,可充分发挥催化剂的结构形态效应,进而有利于提高催化氧化去除甲苯的催化性能。

The research progress of toluene removal was reviewed by catalytic oxidation and focuses on the latest research progress of Co,Mn-based metal oxide catalysts to remove toluene and the structural or morphologic effects of catalysts.The catalytic performance of toluene oxidation was summarized in terms of synthesis condition,preparation method,support,promoter and synergistic effect between the bimetals.The structural or morphologic effects including physical structure,interface structure and dispersion of active components on the catalytic performance were analyzed.The reaction mechanism of catalytic oxidation of toluene was also discussion.The doping of bimetals with appropriate molar ratio can modify the content of active oxygen species,reducibility and enhance the synergistic effect between the bimetal for the mono-metal oxide catalysts.The structural effects of catalysts can be fully developed by adjusting different synthesis conditions and methods,and it is conducive to improving the catalytic performance of toluene removal.