过渡金属-铈复合氧化物对碳烟的催化燃烧性能和表征

被引：8

作者：

明彩兵 ^{[1
]}

叶代启 ^{[2
]}

梁红 ^{[3
]}

刘晖 ^{[1
]}

机构：

[1] 仲恺农业工程学院环境科学与工程学院

[2] 华南理工大学环境科学与工程学院

[3] 广州大学化学化工学院

来源：

环境科学学报 | 2010年 / 30卷 / 01期

关键词：

铈; 复合氧化物; 碳烟; 活性氧种; 过渡金属;

D O I：

10.13671/j.hjkxxb.2010.01.002

中图分类号：

O643.32 [催化反应];

学科分类号：

081705 ;

摘要：

采用共沉淀法制备了不同过渡金属(Fe、V、Mn、Co、Cu)和铈的复合体氧化物催化剂,并用程序升温还原法(H2-TPR)、BET、XRD、拉曼光谱(RS)和光电子能谱(XPS)对催化剂进行了表征.同时,利用热重法测试了催化剂对碳烟的催化活性.实验结果表明,过渡金属的添加极大地提高了氧化铈的催化活性,其中,铈铁复合氧化物的催化活性最高.催化剂催化燃烧碳烟的活性与催化剂表面的耗氢量以及催化剂表面氧种OⅡ的含量紧密相关.

引用

页码：158 / 164

页数：7

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