LaMnO_(3+λ)中La^(3+)空位率对CO催化氧化活性的影响  

Effect of the Concentration of La 3+ Vacancies in LaMnO 3+ λ on the Catalytic Activity of Oxidation of CO

作　　者：孙永安[1] 张文韬[1] 胡瑞生[2] 沈岳年[2] 

机构地区：[1]内蒙古民族师范学院化学系 [2]内蒙古大学化学系

出　　处：《中国稀土学报》1997年第2期123-125,共3页Journal of the Chinese Society of Rare Earths

基　　金：内蒙古自然科学基金

摘　　要：在不同氧分压下合成了ＬａＭｎＯ３＋λ系列催化剂，用ＸＲＤ法进行了结构测定与分析，用化学滴定分析测定了Ｍｎ４＋含量。在脉冲催化微型反应器上测定了ＬａＭｎＯ３＋λ系列催化剂对ＣＯ催化氧化的活性的影响，并进行了讨论。A series of LaMnO 3+ λ catalysts had been synthesised under various partial pressures of oxygen. The structures of these catalysts were determined by XRD. The percents of Mn 4+ ion in the catalysts were measured by chemical analysis. The activities of oxidation of CO over that series of catalysts were tested by pulsing process in differential reactor. The results of various measurements are discussed in this paper as well.

关 键 词：镧 氧化物 催化剂 一氧化碳氧化 催化剂活性 

分 类 号：O612.4[理学—无机化学] O643.361[理学—化学]