文献详情
Low-temperature selective catalytic reduction of N2O by CO over Fe-ZSM-5 catalysts in the presence of O-2
文献类型：期刊
通讯作者：Chang, HZ (reprint author), Renmin Univ China, Sch Environm & Nat Resources, Beijing 100872, Peoples R China.; Ma, L (reprint author), Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA.
期刊名称：JOURNAL OF HAZARDOUS MATERIALS影响因子和分区
年：2020
卷：383
ISSN：0304-3894
关键词：Selective catalytic reduction of N2O by CO; Fe-ZSM-5; O-2 resistance; alpha-Sites
所属部门：环境学院
摘要：Nitrous oxide (N2O) is an important ozone-depletion substance and greenhouse gas. Selective catalytic reduction (SCR) of N2O by CO is considered an effective method for N2O elimination. However, O-2 exhibited a significant inhibition effect on the catalytic performance of N2O reduction by CO. A series of iron-based catalysts were prepared to investigate the effect of O-2 in SCR of N2O by CO. The Fe-Z-pH2 (Fe-ZSM-5 ion-exchanged under pH of 2) catalyst manifested superior activity at low temperat ...More
Nitrous oxide (N2O) is an important ozone-depletion substance and greenhouse gas. Selective catalytic reduction (SCR) of N2O by CO is considered an effective method for N2O elimination. However, O-2 exhibited a significant inhibition effect on the catalytic performance of N2O reduction by CO. A series of iron-based catalysts were prepared to investigate the effect of O-2 in SCR of N2O by CO. The Fe-Z-pH2 (Fe-ZSM-5 ion-exchanged under pH of 2) catalyst manifested superior activity at low temperature and excellent O-2 resistance in N2O reduction process. The characterization results from UV-vis DR spectra and XPS indicated that a-sites are the main active sites in Fe-Z-pH2, and they were inert to O-2 but highly active to N2O. It could be concluded that the competition effect between N2O and O-2 was very important over different catalysts. O-2 is more prevalent over alpha-Fe2O3 catalyst, while N2O dominates over Fe-Z-pH2 catalyst. Moreover, in the presence of O-2, Fe-Z-pH2 exhibited better performance for N2O removal than non-noble mixed oxide catalysts, which might broaden the application of low-temperature SCR of N2O by CO. ...Hide

DOI：10.1016/j.jhazmat.2019.121117
百度学术：Low-temperature selective catalytic reduction of N2O by CO over Fe-ZSM-5 catalysts in the presence of O-2
语言：外文
被引频次：1
人气指数：1
浏览次数：1
基金：National Key R&D Program of China [2016YFC0203900, 2016YFC0203901]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [51778619, 21577173]
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