Promotional effect of CeO_2 and Y_2O_3 on CuO/ZrO_2 catalysts for methane combustion  

作　　者：黄亮 张兴旺 陈琳 雷乐成 

机构地区：[1]Institute of Industrial Ecology and Environment,Yuquan Campus,Zhejiang University [2]School of Chemistry and Environmental Science,Guizhou University for Nationalities

出　　处：《Journal of Rare Earths》2012年第2期123-127,共5页稀土学报（英文版）

基　　金：Project supported by National Natural Science Foundation of China (90610005, 20836008 and U0633003);the Project of Science and Technology Department of Zhejiang Province of China (2007C1306)

摘　　要：Catalytic combustion of methane was conducted by using a Cu-based catalyst prepared by the plasma-assisted impregnation method. The properties of the catalysts were surveyed by X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS） and temperature-programmed reduction （H2-TPR）. The results showed that the activity of CuO/ZrO2 with the CeO2 and Y2O3 was obviously increased compared with the CuO/ZrO2 catalyst, which was examined in relation to the structure and surface characteristics and might be correlated with their surface oxygen species and redox properties. Among the investigated catalysts, the Ce-CuO/ZrO2 sample exhibited the highest activity for methane combustion.Catalytic combustion of methane was conducted by using a Cu-based catalyst prepared by the plasma-assisted impregnation method. The properties of the catalysts were surveyed by X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS） and temperature-programmed reduction （H2-TPR）. The results showed that the activity of CuO/ZrO2 with the CeO2 and Y2O3 was obviously increased compared with the CuO/ZrO2 catalyst, which was examined in relation to the structure and surface characteristics and might be correlated with their surface oxygen species and redox properties. Among the investigated catalysts, the Ce-CuO/ZrO2 sample exhibited the highest activity for methane combustion.

关 键 词：copper-based catalysts CERIUM YTTRIUM catalytic combustion rare earths 

分 类 号：O614.3[理学—无机化学]