Cesium as a dual function promoter in Co/Ce-Sn catalyst for soot oxidation
文献类型：期刊论文
| 作者 | Wang, Meng; Zhang, Yan; Yu, Yunbo; Shan, Wenpo; He, Hong
|
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2021-05-15 |
| 卷号 | 285页码:- |
| 关键词 | Soot oxidation Cs Dual functional promoter Surface defects Contact |
| ISSN号 | 0926-3373 |
| 英文摘要 | In this study, a 10 %Cs/3 %Co/Ce0.5Sn0.5O2 catalyst with outstanding soot oxidation performance was developed, by doping Cs to 3 %Co/Ce0.5Sn0.5O2. Remarkably, doping Cs lowered the T-50 of the catalyst by 163 degrees C under a H2O/O-2/N-2 atmosphere and loose contact. It was also noteworthy that the 10 %Cs/3 %Co/Ce0.5Sn0.5O2 catalyst exhibited excellent water and sulfur dioxide resistances. Characterizations indicated that the doping of Cs had dual functional effects on soot catalytic oxidation. On one hand, the introduction of Cs induced the formation of more oxygen defects, which was beneficial to the activation of surface chemisorbed oxygen. On the other hand, it also benefited the catalytic performance by increasing the mobility of the surface-active oxygen species, which favored the contact between soot and catalyst. Therefore, the alkali metal cesium was found to be an excellent promoter for soot catalytic oxidation, and the developed 10 %Cs/3 %Co/Ce0.5Sn0.5O2 catalyst is very promising for practical applications in diesel soot oxidation. |
| WOS研究方向 | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46025]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ningbo Urban Environm Observat & Res Stn, Ningbo 315800, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Meng,Zhang, Yan,Yu, Yunbo,et al. Cesium as a dual function promoter in Co/Ce-Sn catalyst for soot oxidation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,285:-. |
| APA | Wang, Meng,Zhang, Yan,Yu, Yunbo,Shan, Wenpo,&He, Hong.(2021).Cesium as a dual function promoter in Co/Ce-Sn catalyst for soot oxidation.APPLIED CATALYSIS B-ENVIRONMENTAL,285,-. |
| MLA | Wang, Meng,et al."Cesium as a dual function promoter in Co/Ce-Sn catalyst for soot oxidation".APPLIED CATALYSIS B-ENVIRONMENTAL 285(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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