Structural characterization of iron species in Fe-ZSM-5 catalysts and the elucidation of their role in the mechanism of NOx reactions
Pérez Vélez, Roxana
1985-
aut
text
theses
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Hochschulschrift
gw
2014
monographic
XA-DE
2014
eng
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The selective catalytic reduction of NOx by ammonia (NH3-SCR) has widely applied in the abatement of NOx. Fe-ZSM-5 is a potential catalyst, showing high performance in standard SCR (mainly NO) at > 400°C and in fast SCR (NO/NO2 = 1) at ≥ 250°C. The identification of the active species in Fe-ZSM-5 catalysts and reaction mechanism for SCR reactions were investigated by in situ and operando EPR, UV-Vis and FTIR spectroscopy. The spectroscopic studies demonstrate the role of NO2 to reoxidize isolated Fe(II) to the active Fe(III) at β and γ sites, and attribute them the higher activity in fast SCR.
vorgelegt von : Roxana Pérez Vélez
Rostock, Univ., Mathematisch-Naturwiss. Fak., Diss., 2015
628.532
624 333.7
35.10
http://rosdok.uni-rostock.de/resolve?urn=urn:nbn:de:gbv:28-diss2015-0041-9
http://rosdok.uni-rostock.de/resolve?urn=urn:nbn:de:gbv:28-diss2015-0041-9&pdf
http://nbn-resolving.de/urn:nbn:de:gbv:28-diss2015-0041-9
Structural characterization of iron species in Fe-ZSM-5 catalysts and the elucidation of their role in the mechanism of NOx reactions
2014
Druck-Ausgabe
(DE-627)816638292
Pérez Vélez, Roxana, 1985 -
urn:nbn:de:gbv:28-diss2015-0041-9
935810072
rakwb
DE-627
150217
818337222
20251224T195015.0
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