M
M. Schwidder
Researcher at Ruhr University Bochum
Publications - 10
Citations - 1261
M. Schwidder is an academic researcher from Ruhr University Bochum. The author has contributed to research in topics: Catalysis & Selective catalytic reduction. The author has an hindex of 9, co-authored 10 publications receiving 1170 citations.
Papers
More filters
Journal ArticleDOI
On the nature of different iron sites and their catalytic role in Fe-ZSM-5 DeNOx catalysts: new insights by a combined EPR and UV/VIS spectroscopic approach
TL;DR: In this article, the results have been correlated with the catalytic behavior of these materials in the selective catalytic reduction (SCR) of NO by isobutane or ammonia.
Journal ArticleDOI
Selective reduction of NO with Fe-ZSM-5 catalysts of low Fe content: I. Relations between active site structure and catalytic performance
M. Schwidder,M. Santhosh Kumar,Konstantin Klementiev,Marga Martina Pohl,Angelika Brückner,Wolfgang Grünert +5 more
TL;DR: In this paper, the performance of Fe-ZSM-5 catalysts was investigated for selective catalytic reduction (SCR) of NO by isobutane (2000 ppm NO, 1000 ppm NH3, 1% O2, 750,000 h−1).
Journal ArticleDOI
Selective reduction of NO with Fe-ZSM-5 catalysts of low Fe content:Part II. Assessing the function of different Fe sites by spectroscopic in situ studies
TL;DR: A series of Fe-ZSM-5 catalysts prepared by improved liquid ion exchange (see part I [J. Catal. 231 (2005) 314]) containing 0.2-1.2 wt% Fe, with a systematically changing nature of Fe sites, was studied during the selective catalytic reduction (SCR) of NO with NH 3 or isobutane or during the interaction with feed components by various in situ methods (EPR, UV-vis, and FTIR spectroscopy) as discussed by the authors.
Journal ArticleDOI
The role of NO2 in the selective catalytic reduction of nitrogen oxides over Fe-ZSM-5 catalysts : Active sites for the conversion of NO and of NO/NO2 mixtures
M. Schwidder,Sascha Heikens,Andrea De Toni,Simone Geisler,Malte Berndt,Angelika Brückner,Wolfgang Grünert +6 more
TL;DR: In this article, the performance of standard and fast SCR was compared over Fe-ZSM-5 catalysts of different Fe content ranging from 0.2 to 5 wt%.
Journal ArticleDOI
The role of Bronsted acidity in the SCR of NO over Fe-MFI catalysts
M. Schwidder,M. Santhosh Kumar,Ursula Bentrup,Javier Pérez-Ramírez,Angelika Brückner,Wolfgang Grünert +5 more
TL;DR: In this article, the selective catalytic reduction (SCR) of NO with isobutane and with NH3 was studied over Fe-MFI catalysts which differ strongly in Bronsted acidity but are similar in Fe content and structure of Fe sites.