Hierarchically porous Fe_2O_3 /CuO composite monoliths:Synthesis and characterization  

作　　者：Xiaodong Ma Hongwen Sun Quan Sun Hongwen Guo Bo Fan Shuo Zhao 

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

出　　处：《Journal of Natural Gas Chemistry》2010年第6期589-592,共4页天然气化学杂志（英文版）

基　　金：supported by the National Natural Science Foundation of China(No. 20977052);the Chinese Academy of Sciences(Grant No. KZCX2-YW-420);the National 973 Program(No. 2009CB421606)

摘　　要：In this paper,hierarchically porous Fe2O3 /CuO composite monoliths were first successfully synthesized by a mild method using silica monoliths as templates.The structure of composite monoliths was characterized by X-ray diffraction,scanning electron microscopy,nitrogen adsorption-desorption.The results indicated that the molar ratio of Fe to Cu had a great influence on the crystal phase of Fe2O3,pore size and the structure of the macroporous wall.The Fe2O3 /CuO composite monoliths consist of hierarchically macroporous and mesoporous structure,while the sample with the Fe/Cu molar ratio of 2：1 possesses tighter wall structure than other samples.It is expected that asprepared Fe2O3/CuO composite monoliths have potential applications in several fields as catalysts,catalyst supports,chemical sensors and high-performance liquid chromatography （HPLC）.In this paper,hierarchically porous Fe2O3 /CuO composite monoliths were first successfully synthesized by a mild method using silica monoliths as templates.The structure of composite monoliths was characterized by X-ray diffraction,scanning electron microscopy,nitrogen adsorption-desorption.The results indicated that the molar ratio of Fe to Cu had a great influence on the crystal phase of Fe2O3,pore size and the structure of the macroporous wall.The Fe2O3 /CuO composite monoliths consist of hierarchically macroporous and mesoporous structure,while the sample with the Fe/Cu molar ratio of 2：1 possesses tighter wall structure than other samples.It is expected that asprepared Fe2O3/CuO composite monoliths have potential applications in several fields as catalysts,catalyst supports,chemical sensors and high-performance liquid chromatography （HPLC）.

关 键 词：hierarchically porous Fe2O3/CuO composite monolith synthesis characterization 

分 类 号：TQ174.758[化学工程—陶瓷工业] O614.811[化学工程—硅酸盐工业]