Mechanistic insights into a NOx storage-reduction (NSR) catalyst by spatiotemporal operando X-ray absorption spectroscopy†
Yasutaka
Nagai, 
*a
Masaoki
Iwasaki
a
and
*a
Masaoki
Iwasaki
a
and
Abstract
Spatially resolved monitoring of the catalytically active state and online catalytic activity measurements were applied to track the fast transient phenomena occurring along the axial direction of a NSR catalyst bed. This methodology clarified the distribution of stored NOx as well as the cause of NOx spike emission.
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