文献类型：期刊文献

中文题名：Effect of Lanthanum on Methanol Fuel Exhaust Deep Oxidation over Palladium Catalyst

英文题名：Effect of lanthanum on methanol fuel exhaust deep oxidation over palladium catalyst

作者：Wang, Xingyi[1]; Wan, Ying[1]; Lu, Guanzhong[1]

机构：[1]E China Univ Sci & Technol, Inst Ind Catalysis, Shanghai 200237, Peoples R China

年份：2003

卷号：21

期号：1

起止页码：51

中文期刊名：Journal of Rare Earths

外文期刊名：JOURNAL OF RARE EARTHS

收录：CSTPCD;;EI(收录号：2003307568455);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000181745600011)】；CSCD:【CSCD2011_2012】；

基金：ProjectsupportedbyShanghaiAcademicFoundationforYoungTeacherinAdvancedSchools

语种：英文

中文关键词：supported palladium catalyst; m ethanol oxidation; lanthanum; rare earths

外文关键词：supported palladium catalyst; methanol oxidation; lanthanum; rare earths

摘要：The performance of deep oxidation of methanol on supported Pd catalyst was exami ned by a chromatograph-micro-reactor. The results show that the add ition of La into γ-Al 2O 3 support can affect greatly the performance of t he Pd catalyst. In the absence of CO, La can decrease the content of oxygen-c ontaining intermediate, although La can not lower the light-off temperature of methanol oxidation. In the presence of CO, La can lower the light-off tem perature, decrease the amount of CO adsorption, and weaken evidently 'CO inhibi tion' to the oxidation of methanol. By XPS technique, it is shown that La modi fies the electronic structure of Pd, which attributes to the modifications of th e catalytic performance.
The performance of deep oxidation of methanol on supported I'd catalyst was examined by a chromatograph-micro-reaetor. The results show that the addition of La into gamma-Al2O3 support can affect greatly the performance of the Pd catalyst. In the absence of CO, La can decrease the content of oxygen-containing intermediate, although La can not lower the light-off temperature of methanol oxidation. In the presence of CO, La can lower the light-off temperature, decrease the amount of CO adsorption, and weaken evidently "CO inhibition" to the oxidation of methanol. By XPS technique, it is shown that La modifies the electronic structure of Pd, which attributes to the modifications of the catalytic performance.