Highly active and stable bimetallic Ir/Fe-USY catalysts for direct and NO-assisted N(2)O decomposition
文献类型：期刊论文
| 作者 | Shen, Qun; Li, Landong; Hao, Zhengping; Xu, Zhi Ping |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2008-12-01 |
| 卷号 | 84期号:2015-03-04页码:734-741 |
| 关键词 | Bimetallic catalyst Ir/Fe-USY Synergy NO-assisted N(2)O decomposition Durability |
| 英文摘要 | The current research investigated N(2)O decompositions over the catalysts Ir/Fe-USY, Fe-USY and Ir-USY under various conditions, and found that a trace amount of iridium (0.1 wt%) incorporated into Fe-USY significantly enhanced N(2)O decomposition activity. The decomposition of N(2)O over this catalyst (Ir/Fe-USY-0.1%) was also partly assisted by NO present in the gas mixture, in contrast to the negative effect of NO over noble metal catalysts. Moreover, Ir/Fe-USY-0.1% can decompose more than 90% at 400 degrees C (i.e. the normal exhaust temperature) under simulated conditions of a typical nitric acid plant, e.g. 5000 ppm N(2)O, 5% O(2), 700 ppm NO and 2% H(2)O in balance He, and such an activity can be kept for over 110 h under these strict conditions. The excellent properties of bimetallic Ir/Fe-USY-0.1% catalyst are presumably related to the good dispersion of Fe and Iron the zeolite framework, the formation of framework Al-O-Fe species and the electronic synergy between the Ir and Fe sites. The reaction mechanism for N(2)O decomposition has been further discussed on the temperature-programmed desorption profiles of O(2), N(2) and NO(2). (C) 2008 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000261123600051 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22015]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 推荐引用方式 GB/T 7714 | Shen, Qun,Li, Landong,Hao, Zhengping,et al. Highly active and stable bimetallic Ir/Fe-USY catalysts for direct and NO-assisted N(2)O decomposition[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2008,84(2015-03-04):734-741. |
| APA | Shen, Qun,Li, Landong,Hao, Zhengping,&Xu, Zhi Ping.(2008).Highly active and stable bimetallic Ir/Fe-USY catalysts for direct and NO-assisted N(2)O decomposition.APPLIED CATALYSIS B-ENVIRONMENTAL,84(2015-03-04),734-741. |
| MLA | Shen, Qun,et al."Highly active and stable bimetallic Ir/Fe-USY catalysts for direct and NO-assisted N(2)O decomposition".APPLIED CATALYSIS B-ENVIRONMENTAL 84.2015-03-04(2008):734-741. |
入库方式： OAI收割
来源：生态环境研究中心
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