Structural Analysis of Potential Active Sites in Metallo-Zeolites for Selective Catalytic Reduction of NOx. An Attempt for the Structure Versus Activity Relationship
Structural Analysis of Potential Active Sites in Metallo-Zeolites for Selective Catalytic Reduction of NOx. An Attempt for the Structure Versus Activity Relationship
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DOI：
10.1023/b:toca.0000024342.01373.d0
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发表时间：
2004-04
影响因子：
3.6
通讯作者：
B. Wichterlová
中科院分区：
文献类型：
--
作者：
B. Wichterlová
本文综述了金属沸石和Ag/Al_2O_3催化剂对稀燃过程中氮氧化物的催化净化研究进展。综述了在贫燃条件下，Co、Fe、Ag沸石和Ag/Al 2 O3催化剂上，烃类选择性催化还原NOx为分子氮（HC-SCR-NOx）的研究进展。这些催化剂的结构分析是通过采用光谱，衍射，吸附和氧化还原技术的组合。尝试将所分析的结构与HC-SCR-NOx活性相关联。
The paper reviews the state of the art of the activity of metallo-zeolites and Ag/alumina in catalytic abatement of nitric oxides from exhaust gases from lean-burn combustion processes. The review is centered on the selective catalytic reduction of NOxby hydrocarbons to molecular nitrogen (HC-SCR-NOx) over Co-, Fe- and Ag-zeolites, and Ag/alumina, i.e. those providing high and stable deNOxactivity in streams containing a high excess of water vapor existing under lean-burn combustion conditions. Analysis of the structure of these catalysts is described by employing a combination of spectral, diffraction, adsorption and redox techniques. An attempt is made to correlate the analyzed structure with the HC-SCR-NOxactivity.