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High thermal stable gold catalyst supported on La_2O_3 doped Fe_2O_3 for low-temperature CO oxidation 被引量:2

High thermal stable gold catalyst supported on La_2O_3 doped Fe_2O_3 for low-temperature CO oxidation
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摘要 La2O3 doped Fe2O3 support was prepared by co-precipitation method,and gold was loaded by deposition-precipitation.Thermal stability of gold catalyst was enhanced considerably by La2O3 doping.Even when calcined at 500 oC for 12 h,the catalyst doped with La2O3 could convert 90% of CO at 28.9 oC,while the catalyst without La2O3 doping achieved 90% CO conversion at 43.5 oC.Characterization techniques,such as N2 adsorption-desorption,X-ray diffraction(XRD),transmission electron microscopic(TEM) and thermogravime... La2O3 doped Fe2O3 support was prepared by co-precipitation method,and gold was loaded by deposition-precipitation.Thermal stability of gold catalyst was enhanced considerably by La2O3 doping.Even when calcined at 500 oC for 12 h,the catalyst doped with La2O3 could convert 90% of CO at 28.9 oC,while the catalyst without La2O3 doping achieved 90% CO conversion at 43.5 oC.Characterization techniques,such as N2 adsorption-desorption,X-ray diffraction(XRD),transmission electron microscopic(TEM) and thermogravime...
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2010年第3期376-382,共7页 稀土学报(英文版)
基金 supported by the Henkel Professorship of Tongji University
关键词 gold catalysts LANTHANUM Fe2O3 support SINTERING CO oxidation rare earths gold catalysts lanthanum Fe2O3 support sintering CO oxidation rare earths
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