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| 过渡金属-铈复合氧化物对碳烟的催化燃烧性能和表征 | |
| 引用本文： | 明彩兵,叶代启,梁红,刘晖.过渡金属-铈复合氧化物对碳烟的催化燃烧性能和表征[J].环境科学学报,2010,30(1):158-164. |
| 作者姓名： | 明彩兵 叶代启 梁红 刘晖 |
| 作者单位： | 1. 仲恺农业工程学院环境科学与工程学院,广州,510225 2. 华南理工大学环境科学与工程学院,广州,510640 3. 广州大学化学化工学院,广州,510006 |
| 基金项目： | 广东省社会发展攻关计划项目(No.2302950B)~~ |
| 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. |
| 关 键 词： | 铈 复合氧化物 碳烟 活性氧种 过渡金属 |
| 收稿时间： | 3/8/2009 3:33:45 PM |
| 修稿时间： | 2009/8/26 0:00:00 |
Catalytic combustion performance of soot over cerium-based transition metal composite oxide catalysts |
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| MING Caibing,YE Daiqi,LIANG Hong and LIU Hui.Catalytic combustion performance of soot over cerium-based transition metal composite oxide catalysts[J].Acta Scientiae Circumstantiae,2010,30(1):158-164. | |
| Authors: | MING Caibing YE Daiqi LIANG Hong and LIU Hui |
| Institution: | MING Caibing1,YE Daiqi2,LIANG Hong3,LIU Hui11. College of Environmental Science , Engineering,Zhongkai University of Agriculture , Engineering,Guangzhou 5102252. College of Environmental Science , Engineering,South China University of Technology,Guangzhou 5106403. College of Chemistry , Chemical Engineering,Guangzhou University,Guangzhou 510006 |
| Abstract: | Transition metal (Fe,V,Mn,Co and Cu)/Ce composite oxide catalysts were prepared by co-precipitation. The catalytic activity of the catalysts for soot combustion was determined by thermogravimetry (TG). The results show that the added transition metal greatly enhances the catalytic reactivity of ceria. Among the catalysts,the iron-cerium composite oxide exhibits the most activity. Catalysts were investigated by techniques such as temperature-programmed reduction (H2-TPR),BET surface area,X-ray diffraction (X... |
| Keywords: | cerium composite oxide soot active oxygen transition metal |
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