KIT | KIT-Bibliothek | Impressum

Lithographically fabricated silicon microreactor for operando QEXAFS studies in exhaust gas catalysis during simulation of a standard driving cycle

Doronkin, D E; Baier, S; Sheppard, T; Benzi, F; Grunwaldt, J-D

Abstract:
Selective catalytic reduction of NOx by ammonia over Cu-ZSM-5 was monitored by operando QEXAFS during simulation of the New European Driving Cycle. The required fast temperature transients were realized using a novel silicon microreactor, enabling simultaneous spectroscopic and kinetic analysis by X-ray absorption spectroscopy (XAS) and mass spectrometry (MS). Periods of high temperature were correlated to an increase in both N2 production and change of coordination of Cu sites. This operando approach using Si microreactors can be applied to other heterogeneous catalytic systems involving fast temperature transients.


Zugehörige Institution(en) am KIT Institut für Katalyseforschung und -Technologie (IKFT)
Institut für Technische Chemie und Polymerchemie (ITCP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.1088/1742-6596/712/1/012030
ISSN: 1742-6588, 1742-6596
URN: urn:nbn:de:swb:90-686480
KITopen ID: 1000068648
Erschienen in Journal of physics / Conference Series
Band 712
Heft 1
Seiten Art. Nr.: 012030
Lizenz CC BY 3.0 DE: Creative Commons Namensnennung 3.0 Deutschland
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft KITopen Landing Page