铈对氧化铁还原性能的影响  

REDUCTIVE BEHAVIOR OF IRON OXIDE CONTAINING CERIUM OXIDE

作　　者：李燕红[1] 张征[1] 郭宪吉[1] 马卓娜[1] 徐苇 郭益群[1] 

机构地区：[1]郑州大学化学化工学院

出　　处：《郑州大学学报（自然科学版）》1998年第2期76-78,共3页Journal of Zhengzhou University (Natural Science)

基　　金：河南省自然科学基金

摘　　要：以ＴＧ和ＸＰＳ为手段，研究了铈对铁系无铬中变催化剂还原性能的影响．结果表明，含有氧化铈的氧化铁样品初始还原温度降低而还原结束温度升高。Samples of iron oxide containing various amount of cerium oxide are preparated by coprecipition method. The reductive behaivor of the samples is studied with method TG and XPS. It is shown that the initial reductive temperature of the samples are reduced, but final reductive temperature are increased as iron oxide are adulterated by cerium oxide. It has been proved that cerium oxide plays a role of structure promoter in water gas shift catalyst.

关 键 词：变换催化剂 氧化铁 还原性能 中变催化剂 

分 类 号：O643.36[理学—物理化学] O614.811[理学—化学]