碳烟氧化催化剂Sm/Cs/Zn(Y)的催化活性及抗硫性能  

Catalytic Activity and Sulfur-resistant Performance of Sm/Cs/Zn(Y) Catalysts for Diesel Soot Oxidation

作　　者：张凤丽[1] 姜斌[1] 张永恒[1] 

机构地区：[1]青岛科技大学材料科学与工程学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2009年第6期505-509,共5页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：山东省中青年科学家奖励基金资助项目(2006BS08023)

摘　　要：研究了负载在-αAl2O3陶瓷基片上的Sm/Cs/Zn(Y)催化剂的催化性能及抗硫性能,并用TG-DSC和XRD对催化剂进行了表征。结果表明:Sm/Cs催化剂对碳烟具有较好氧化活性,最低起燃温度在305℃左右,最低峰值氧化温度约为374℃;Sm/Cs/Zn和Sm/Cs/Y催化剂也具有较好的催化活性,最低起燃温度分别在329℃和310℃左右,最低峰值氧化温度分别约为397℃和389℃。但Sm/Cs比Sm/Cs/Zn(Y)催化剂具有较好的抗硫性能。The Sm/Cs/Zn（Y） catalysts were loaded on a-A12 03 ceramic substrates, and their catalytic activity and sulfur-resistant capability were studied. The catalysts were characterized by TC-DSC and XRD, while their catalytic activities were tested by TPR. The results showed that the catalytic activity of the Sm/Cs catalyst performed well with the lowest ignition temperature of about 305℃ and the lowest peak temperature of about 374 ℃. The Sm/Cs/Zn and Sm/Cs/Y catalysts also showed a good catalytic activity of soot oxidation with the lowest ignition temperatures of about 329 ℃ and 310 ℃, and the lowest peak temperatures of about 397 ℃ and 389 ℃, respectively. However, the Sm/Cs catalyst had a better sulfur-resistant capability than the Sm/Cs/ Zn（Y） catalysts.

关 键 词：碳烟氧化催化剂 抗硫性 起燃温度 催化活性 

分 类 号：TQ426.7[化学工程]