沸石
催化作用
氮氧化物
选择性催化还原
化学
氨
水热合成
热液循环
无机化学
化学工程
有机化学
燃烧
工程类
作者
Nuria Nicodemus Martín,Peter N. R. Vennestrøm,Joakim R. Thøgersen,Manuel Moliner,Avelino Corma
出处
期刊:Chemcatchem
[Wiley]
日期:2017-04-04
卷期号:9 (10): 1754-1757
被引量:45
标识
DOI:10.1002/cctc.201601627
摘要
The preparation of the iron-containing SSZ-39 zeolite is described for the first time through two different synthesis methods: post-synthetic cation exchange and one-pot synthesis. The nature and stability of the iron species within the different Fe-SSZ-39 materials have been studied through different characterization techniques, and their catalytic activity has been evaluated for the selective catalytic reduction (SCR) of NOx with ammonia. The directly synthetized Fe-SSZ-39 performs better for the SCR of NOx with ammonia than other related Fe-zeolites, particularly at elevated reaction temperatures (above 450 °C), and presents improved hydrothermal stability when aged under severe conditions.
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