Issue 44, 2015
From the journal:

Chemical Communications

Structural snapshots of the SCR reaction mechanism on Cu-SSZ-13†

Tobias Günter,a   Hudson W. P. Carvalho,a   Dmitry E. Doronkin,ab   Thomas Sheppard, ORCID logo a   Pieter Glatzel,c   Andrew J. Atkins,d   Julian Rudolph,e   Christoph R. Jacob, ORCID logo de   Maria Casapua  and  Jan-Dierk Grunwaldt*ab  

* Corresponding authors

a Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany
E-mail: grunwaldt@kit.edu

b Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany

c European Synchrotron Radiation Facility, F-38043 Grenoble Cedex, France

d Center for Functional Nanostructures and Institute of Physical Chemistry, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany

e Institute of Physical and Theoretical Chemistry, TU Braunschweig, D-38106 Braunschweig, Germany

Abstract

The structure of copper sites in Cu-SSZ-13 during NH3-SCR was unravelled by a combination of novel operando X-ray spectroscopic techniques. Strong adsorption of NH3 on Cu, its reaction with weakly adsorbed NO from the gas phase, and slow re-oxidation of Cu(I) were proven. Thereby the SCR reaction mechanism is significantly different to that observed for Fe-ZSM-5.

Graphical abstract: Structural snapshots of the SCR reaction mechanism on Cu-SSZ-13

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Article information

DOI
https://doi.org/10.1039/C5CC01758K
Article type
Communication
Submitted
28 Feb 2015
Accepted
28 Apr 2015
First published
29 Apr 2015
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2015,51, 9227-9230

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Structural snapshots of the SCR reaction mechanism on Cu-SSZ-13

T. Günter, H. W. P. Carvalho, D. E. Doronkin, T. Sheppard, P. Glatzel, A. J. Atkins, J. Rudolph, C. R. Jacob, M. Casapu and J. Grunwaldt, Chem. Commun., 2015, 51, 9227 DOI: 10.1039/C5CC01758K

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