In-situ synthesis of monolithic Cu-Mn-Ce/cordierite catalysts towards VOCs combustion  

作　　者：卢晗锋 周瑛 黄海凤 张波 陈银飞 

机构地区：[1]College of Chemical Engineering and Material Science, Zhejiang University of Technology

出　　处：《Journal of Rare Earths》2011年第9期855-860,共6页稀土学报（英文版）

基　　金：Project supported by National Natural Science Foundation of China (21107096);Zhejiang Provincial Natural Science Foundation (Y5090202)

摘　　要：A monolithic series of Cu-Mn-Ce oxides supported on cordierites with different Cu/Mn/Ce molar ratios were prepared by the in-situ sol-gel method without any binder. The catalysts were characterized by scanning electron microscopy （SEM）, energy dispersive spectrometer （EDS）, X-ray diffraction （XRD）, and Brunauer-Emmett-Teller method （BET） and examined in the catalytic combustion of volatile organic compounds （VOCs）. The results showed that the well-dispersed nanometer particles of mixed oxides adhered firmly to the cordierite surface. Cu0.15Mn0.3Ce55/cordierite was identified as the most active catalyst. Compared with commercial Pd/Al2O3, Cu0.15Mn0.3Ce55/cordierite showed higher activities for the combustion of various types of VOCs, especially for oxy-derivative compounds which could be lighted off below 200 ℃.A monolithic series of Cu-Mn-Ce oxides supported on cordierites with different Cu/Mn/Ce molar ratios were prepared by the in-situ sol-gel method without any binder. The catalysts were characterized by scanning electron microscopy （SEM）, energy dispersive spectrometer （EDS）, X-ray diffraction （XRD）, and Brunauer-Emmett-Teller method （BET） and examined in the catalytic combustion of volatile organic compounds （VOCs）. The results showed that the well-dispersed nanometer particles of mixed oxides adhered firmly to the cordierite surface. Cu0.15Mn0.3Ce55/cordierite was identified as the most active catalyst. Compared with commercial Pd/Al2O3, Cu0.15Mn0.3Ce55/cordierite showed higher activities for the combustion of various types of VOCs, especially for oxy-derivative compounds which could be lighted off below 200 ℃.

关 键 词：catalytic combustion volatile organic compounds （VOCs） monolithic catalysts Cu-Mn-Ce mixed oxides rare earths 

分 类 号：O643.3[理学—物理化学]