The effect of Cu and Fe cations on NH3-supported proton transport in DeNOx-SCR zeolite catalysts

被引：32
|
作者：
Chen, Peirong [1 ,2 ]
Rauch, Dieter [3 ,4 ]
Weide, Philipp [5 ]
Schoenebaum, Simon [1 ,2 ]
Simons, Thomas [1 ,2 ]
Muhler, Martin [5 ]
Moos, Ralf [3 ,4 ]
Simon, Ulrich [1 ,2 ]
机构：
[1] Rhein Westfal TH Aachen, Inst Inorgan Chem IAC, Landoltweg 1, D-52074 Aachen, Germany
[2] Rhein Westfal TH Aachen, Ctr Automot Catalyt Syst Aachen ACA, Landoltweg 1, D-52074 Aachen, Germany
[3] Univ Bayreuth, Dept Funct Mat, BERC, Univ Str 30, D-95440 Bayreuth, Germany
[4] Univ Bayreuth, Zentrum Energietech ZET, Univ Str 30, D-95440 Bayreuth, Germany
[5] Ruhr Univ Bochum, Lab Ind Chem, Univ Str 150, D-44801 Bochum, Germany
来源：
CATALYSIS SCIENCE & TECHNOLOGY | 2016年 / 6卷 / 10期
关键词：
SCR CATALYSTS; REDUCTION; NH3; NOX; SITES; STATE; CHABAZITE; IMPEDANCE; SPECTROSCOPY; MECHANISM;
D O I：
10.1039/c6cy00452k
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Proton transport studies revealed the different influence of Fe and Cu cations on the NH3-zeolite interaction and the NO-zeolite interaction in the presence of adsorbed NH3. At low temperatures, after NH3 saturation, Cu-ZSM-5 is more reactive than Fe-ZSM-5 for NO activation forming highly mobile NH4+ intermediates.
引用
收藏
页码：3362 / 3366
页数：5
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