Preparation and Characterization of Low-temperature Catalytic Combustion Catalyst La0.8Ce0.2MnOx/γ-Al2O3
In this paper, MnOx catalysts, supported on γ-Al2O3 and modified by La and Ce, were prepared by isometrical impregnation method. The load rate of active component and calcination temperature were investigated by the catalytic combustion of toluene. It was found that the best preparation process of catalyst was the loading amount of La0.8Ce0.2MnOx about 12% and 450℃ calcination background. In the gas flow rate of 6000h-1, toluene was completely combusted at the temperature of 320. T ℃ he catalyst was characterized by means of XRD, BET, SEM and XRF. The results showed that the active component on the surface of La0.8Ce0.2MnOx/γ-Al2O3 catalyst was superior in dispersivity, the size of oxide particles on the surface of catalyst was equable and they dispersed evenly. All of these implied fine catalytic activity and were favorable for the catalytic combustion of toluene.
WANG Shuai WANG Yongqiang ZHAO Chaocheng
School of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266555, Shandong, China
国际会议
2011 International Symposium on Environmental Science and Technology(2011 环境科学与技术国际会议 2011 ISEST)
广东东莞
英文
233-238
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）