哈尔滨工业大学学报（英文版）2006，Vol.13Issue(4)：498-501,4.
Preparation and characterization of La1-xCexFe1-y-nCoyRunO3 compounds
Preparation and characterization of La1-xCexFe1-y-nCoyRunO3 compounds
摘要
Abstract
The mixed oxides La1-xCexFe1-y-nCoyRunO3 were prepared by sol-gel method and used as catalysts for NO direct decomposition. The catalysts were characterized by DTA - TG, XRD, IR and BET. XRD analysis reveals that the samples are in a pure perovskite phase in 550 ～ 650℃, and catalyst structure keeps long else 2θ decrease, and lattice parameters enhance when Ru is introduced. The characteristic peaks of samples are stronger during a temperature increase, and the particle size grows faster. IR analysis shows that the position and shape of adsorption peaks are almost the same among all samples, but with the Ru content increasing, 600cm-1 peak stretches to a high frequency and changes to disorder. The wave numbers move to low frequency when n = O. 05, yet it doesn't vary obviously when n ＞ 0.05. The BET surface area testifies that particle sizes of all catalysts increase with temperature increasing.关键词
sol-gel preparation/doping/perovskite type phase/direct decomposition of NOKey words
sol-gel preparation/doping/perovskite type phase/direct decomposition of NO分类
化学化工引用本文复制引用
LI Li,ZHANG Min-lin,YUAN Fu-long,SHI Ke-ying,ZHANG Guo,FU Hong-gang..Preparation and characterization of La1-xCexFe1-y-nCoyRunO3 compounds[J].哈尔滨工业大学学报（英文版）,2006,13(4):498-501,4.基金项目
Sponsored by the National Natural Science Foundation of China( Grant No. 20271019 and 20576027) and the Natural Science Foundation of Heilongjiang Province ( Grant No. B200504) and the Postdoctoral Foundation of Heilongjiang Province ( Grant No.LBH - Z05066),and Education Office Foundation of Heilongjiang Province(Grant No.11511270). （ Grant No. 20271019 and 20576027）
