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

页码：3362 / 3366

页数：5

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