Effects of NO2 Addition on the NH3-SCR over Small-Pore Cu-SSZ-13 Zeolites with Varying Cu Loadings
文献类型：期刊论文
| 作者 | Shan, Yulong; Shi, Xiaoyan; He, Guangzhi; Liu, Kuo; Yan, Zidi; Yu, Yunbo; He, Hong
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| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2018-11-15 |
| 卷号 | 122期号:45页码:25948-25953 |
| ISSN号 | 1932-7447 |
| 文献子类 | Article |
| 英文摘要 | Small-pore Cu-SSZ-13 zeolites with varying Cu loadings were applied in the standard and the fast selective catalytic reductions (SCR) of NO with NH3. It was found that increased Cu loadings contributed to standard SCR, while inhibited fast SCR. The NO and NO2 reaction pathways were analyzed under fast SCR conditions by comparing the NO and NO2 conversion activities over Cu-SSZ-13 and H-SSZ-13 zeolites. At low temperatures, NO2 addition strongly inhibited the NO conversion because of the formation of NH4NO3. Compared to medium- and large-pore zeolites, the small pores were blocked more severely by the formed NH4NO3, making it more difficult for the reactant molecules (NH3 and NO2) with geometric dimensions similar to those of the small pores to go through the channel opening. Additionally, at high temperatures when NH4NO3 decomposed, NO2 showed a promotion effect on NOx conversion because of the occurrence of the fast SCR reaction, especially on Cu-SSZ-13 with low Cu loadings. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40808]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Shan, Yulong,Shi, Xiaoyan,He, Guangzhi,et al. Effects of NO2 Addition on the NH3-SCR over Small-Pore Cu-SSZ-13 Zeolites with Varying Cu Loadings[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(45):25948-25953. |
| APA | Shan, Yulong.,Shi, Xiaoyan.,He, Guangzhi.,Liu, Kuo.,Yan, Zidi.,...&He, Hong.(2018).Effects of NO2 Addition on the NH3-SCR over Small-Pore Cu-SSZ-13 Zeolites with Varying Cu Loadings.JOURNAL OF PHYSICAL CHEMISTRY C,122(45),25948-25953. |
| MLA | Shan, Yulong,et al."Effects of NO2 Addition on the NH3-SCR over Small-Pore Cu-SSZ-13 Zeolites with Varying Cu Loadings".JOURNAL OF PHYSICAL CHEMISTRY C 122.45(2018):25948-25953. |
入库方式： OAI收割
来源：生态环境研究中心
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