制备工艺对LaMnO3钙钛矿型催化剂性能影响的研究  

Catalytic Properties of LaMnO_3 Catalysts Prepared by Different Methods

作　　者：郭文亮[1,2] 柳召刚[1] 王东杰[3,4] 许延辉[3,4] 刘海蛟[3,4] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010 [2]包头钢铁(集团)有限责任公司,内蒙古包头014010 [3]包头稀土研究院,内蒙古包头014030 [4]稀土冶金及功能材料国家工程研究中心,内蒙古包头014030

出　　处：《稀土》2012年第4期38-43,共6页Chinese Rare Earths

基　　金：内蒙古自然科学基金项目资助项目(2010MS0710)

摘　　要：采用共沉淀法、溶胶-凝胶法和燃烧法制备LaMnO3钙钛矿型催化材料,考察了不同制备方法对催化材料结构和性能的影响。用X射线衍射仪(XRD)﹑比表面测定仪(BET)和扫描电子显微镜(SEM)等分析手段对催化剂的微观结构进行了表征。用催化剂评价系统考察了催化剂对CO的催化氧化活性。The perovskite-type oxide LaMnO3 catalysts was prepared by the method of co-precipitation,sol-gel and combustion in this paper,and the microstructure was characterized by XRD,BET and SEM.The optimal heat-treatment temperature and the catalytic activity for CO catalytic combustion were also investigated by Catalyst Evaluation System.

关 键 词：LAMNO3 共沉淀法 溶胶-凝胶法 燃烧法 催化活性 

分 类 号：O643.3[理学—物理化学] O614.33[理学—化学]