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Chem Commun (Camb). 2015 Jun 4;51(44):9227-30. doi: 10.1039/c5cc01758k.

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

Author information

1
Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany. grunwaldt@kit.edu.

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.

PMID:
25951966
DOI:
10.1039/c5cc01758k

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