Preparation,characterization and catalytic behavior of hierachically porous CuO/α-Fe_2O_3/SiO_2 composite material for CO and o-DCB oxidation  

作　　者：Xiaodong Ma Xi Feng Xuan He Hongwen Guo Lu Lu 

机构地区：[1]Key Laboratory of Environmental Pollution Process and Standard, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China

出　　处：《Journal of Natural Gas Chemistry》2011年第6期618-622,共5页天然气化学杂志（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 20977052 and 21177066);the Science and Technology Commission Foundation of Tianjin (No. 11JCYBJC05100);the Chinese Academy of Sciences(No. KZCX2-YW-420);the National 973 program (No. 2009CB421606)

摘　　要：Hierachically porous （HP） CuO/α-Fe2O3/SiO2 composite material was fabricated by sol-gel method and multi-hydrothermal processes using HP-SiO2 as support.The resulting material was characterized by N2 adsorption-desorption,X-ray diffraction and scanning electron microscopy.The as-prepared CuO/Fe2O3/HP-SiO2 sample,with α-Fe2O3 and CuO nanocrystals,possessed a co-continuous skeleton,through-macroporous and mesoporous structure.Its catalytic behavior for CO and o-DCB oxidation was investigated.The result showed that CuO/Fe2O3/HP-SiO2 catalyst exhibited high catalytic activity for both CO and o-DCB oxidation,indicating its potential application in combined abatement of CO and chlorinated volatile organic compounds.Hierachically porous （HP） CuO/α-Fe2O3/SiO2 composite material was fabricated by sol-gel method and multi-hydrothermal processes using HP-SiO2 as support.The resulting material was characterized by N2 adsorption-desorption,X-ray diffraction and scanning electron microscopy.The as-prepared CuO/Fe2O3/HP-SiO2 sample,with α-Fe2O3 and CuO nanocrystals,possessed a co-continuous skeleton,through-macroporous and mesoporous structure.Its catalytic behavior for CO and o-DCB oxidation was investigated.The result showed that CuO/Fe2O3/HP-SiO2 catalyst exhibited high catalytic activity for both CO and o-DCB oxidation,indicating its potential application in combined abatement of CO and chlorinated volatile organic compounds.

关 键 词：CO and o-DCB oxidation hierachically porous CuO/α-Fe2O3/HP-SiO2 monolith 

分 类 号：O643.36[理学—物理化学] TB33[理学—化学]