Operando Spatially- and Time-Resolved XAS and Valence-to-Core-Xes to Study the Mechanism of the NH3-SCR over Fe- and Cu-Zeolites

Grunwaldt, Jan-Dierk

Tuesday, June 16, 2015: 11:20 AM

408-410 (Lawrence Convention Center)

Dmitry Doronkin, Tobias Günter, Hudson Wallace Pereira de Carvalho, Alexey Boubnov, Maria Casapu and Jan-Dierk Grunwaldt, Karlsruhe Institute of Technology (KIT), Germany.

New insight into the mechanism of the selective catalytic reduction of NOx by ammonia over Cu- and Fe-zeolites was gained by operand spectroscopy. In particular, we applied for the first time time- and spatially resolved XAS as well as a combination of XANES, EXAFS, and valence-to-core XES under reaction conditions.

Extended Abstracts:

NAM2015-SCR-Abstract_final.pdf (102.1KB) - Extended Abstract

O-Tu-408-6 Operando Spatially- and Time-Resolved XAS and Valence-to-Core-Xes to Study the Mechanism of the NH3-SCR over Fe- and Cu-Zeolites