溶胶-凝胶新方法合成介孔铁酸铜纳米粉体催化剂上CO低温氧化(英文)  

Low temperature CO oxidation over mesoporous CuFe_2O_4 nanopowders synthesized by a novel sol-gel method

作　　者：Ehsan Amini Mehran Rezaei Mohammad Sadeghinia 

机构地区：[1]Institute of Nanoscience and Nanotechnology,University of Kashan Catalyst and Advanced Materials Research Laboratory,Chemical Engineering Department,Faculty of Engineering,University of Kashan

出　　处：《催化学报》2013年第9期1762-1767,共6页

基　　金：supported by University of Kashan (158426/13)

摘　　要：Mesoporous CuFe2O4 solid solution nanopowders with high specific surface areas were synthesized by a novel, very simple and inexpensive sol-gel route using propylene oxide as gelation agent, and used as the catalyst in low temperature CO oxidation. The samples were characterized by X-ray diffraction, N2 adsorption-desorption, thermogravimetric/differential thermal analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and temperature-programmed reduction. The results revealed that the samples have a nanocrystalline structure with crystals in the range of 10 to 25 nm, and that all the catalysts have mesoporous pores. The addition of Cu into iron oxide affected its structural and catalytic properties. The sample containing 15 mol% Cu showed the highest specific surface area and catalytic activity, and showed high catalytic stability in low temperature CO oxidation.Mesoporous CuFe2O4 solid solution nanopowders with high specific surface areas were synthesized by a novel, very simple and inexpensive sol-gel route using propylene oxide as gelation agent, and used as the catalyst in low temperature CO oxidation. The samples were characterized by X-ray diffraction, N2 adsorption-desorption, thermogravimetric/differential thermal analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and temperature-programmed reduction. The results revealed that the samples have a nanocrystalline structure with crystals in the range of 10 to 25 nm, and that all the catalysts have mesoporous pores. The addition of Cu into iron oxide affected its structural and catalytic properties. The sample containing 15 mol% Cu showed the highest specific surface area and catalytic activity, and showed high catalytic stability in low temperature CO oxidation.

关 键 词：Carbon MONOXIDE oxidation CuFe2O4 solid solution SOL-GEL NANOPOWDER PROPYLENE OXIDE Iron OXIDE 

分 类 号：O643.32[理学—物理化学]