稀土改性氧化铝为载体的催化剂研究  

The catalysts research of the Al_2O_3 support modified with rare earth

作　　者：梁红[1] 李树华[1] 洪燕霞[1] 王婷婷[1] 陈姚[1] 

机构地区：[1]广州大学化学化工学院,广东广州510006

出　　处：《广州大学学报（自然科学版）》2012年第3期45-49,共5页Journal of Guangzhou University:Natural Science Edition

基　　金：广东省自然科学基金项目(S2011010003492);广东省社会发展科技项目(2007B030102006)资助

摘　　要：以稀土铈改性氧化铝为载体制备Pt/K/Ce-Al-O催化剂,考察了铈的掺杂量、焙烧温度对载体性能的影响,以及活性组分钾含量及催化剂的焙烧温度对催化剂活性的影响.实验研究发现,载体氧化铝的制备条件及活性组分钾的掺杂对催化性能有较大的影响,采用铈的掺杂量为9%,钾的负载量为9%,焙烧温度为700℃时,催化剂的活性较好.The effect of Ce doped amount, calcination temperature on the Al2O3 support were studied. And also the effect of potassium content and calcination temperature of the catalyst on the performances of the catalysts were investigated. It showed that the preparation conditions of Al2O3 support had great contribution to performance of Pt/K/Ce-Al-O catalyst. The experiment results showed in the best condition of preparation （ cerous oxides doping on carrier is 9% , the load number of kalium is 9% ,the load number of platinum is 0.1%, the calcined temperature is 700 ℃ ）, the catalyst showed better catalytic activity

关 键 词：氧化铝 稀土 柴油车尾气 颗粒物 

分 类 号：TQ133.1[化学工程—无机化工] TQ133.3