Cs promoted Ag/Al2O3 catalysts for selective catalytic reduction of NOx by methane: effect of SO2 and H2O

Title
Cs promoted Ag/Al2O3 catalysts for selective catalytic reduction of NOx by methane: effect of SO2 and H2O
Authors
라오하헌필
Keywords
SCR; Catalyst; Cs promotion; methane
Issue Date
2012-03
Publisher
Catalysis Science & Technology
Citation
VOL 2, NO 3, 495-498
Abstract
Highly active alumina supported silver nano-particles were evaluated for SCR of NOx using methane in an excess oxygen atmosphere. Cs promoted Ag/Al2O3 catalysts showed high NO reduction activity. In addition, the prepared materials exhibited promotional effects in the presence of SO2 and H2O. The X-ray diffraction profiles of fresh and used catalysts indicated that the prepared materials are thermally stable up to 70 h of time-on-stream reaction. Activity results well correlated with the characterization data, which revealed that the high deNOx ability was due to superior NO adsorption properties as well as the presence of an appropriate amount of Ag+ and metallic Ag particles.
URI
http://pubs.kist.re.kr/handle/201004/42168
ISSN
20444753
Appears in Collections:
KIST Publication > Article
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