Active sites in Cu-SSZ-13 deNOx catalyst under reaction conditions: a XAS/XES perspective
Active sites in Cu-SSZ-13 deNOx catalyst under reaction conditions: a XAS/XES perspective
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DOI：
10.1088/1742-6596/712/1/012041
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发表时间：
2016-05
期刊：
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通讯作者：
K. Lomachenko;E. Borfecchia;S. Bordiga;A. Soldatov;P. Beato;C. Lamberti
中科院分区：
文献类型：
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作者：
K. Lomachenko;E. Borfecchia;S. Bordiga;A. Soldatov;P. Beato;C. Lamberti
Cu-SSZ-13是一种用于NH3辅助选择性催化还原（SCR）有害氮氧化物（NOx，x=1，2）的高活性催化剂。由于该反应的催化活性位点主要由并入沸石框架中的孤立的Cu离子表示，Cu局部环境的元素选择性研究对于充分理解该材料的增强催化性能至关重要。在此，我们强调了在不同的反应相关条件下，采用XAS和XES光谱，辅以计算分析，在Cu-SSZ-13中最丰富的Cu-位点的表征的最新进展。最相关的文献也提出了一个简明的评论。
Cu-SSZ-13 is a highly active catalyst for the NH3-assisted selective catalytic reduction (SCR) of the harmful nitrogen oxides (NOx, x=1, 2). Since the catalytically active sites for this reaction are mainly represented by isolated Cu ions incorporated into the zeolitic framework, element-selective studies of Cu local environment are crucial to fully understand the enhanced catalytic properties of this material. Herein, we highlight the recent advances in the characterization of the most abundant Cu-sites in Cu-SSZ-13 upon different reaction-relevant conditions made employing XAS and XES spectroscopies, complemented by computational analysis. A concise review of the most relevant literature is also presented.