NDLI: Pd-Integrated Perovskite as Effective Catalyst for Selective Catalytic Reduction of NO$

Content Provider	Springer Nature Link
Author	Mondragón Rodríguez, G. C. Saruhan, B. Petrova, O. Grünert, W.
Copyright Year	2009
Abstract	Perovskite based Pd catalysts were prepared by a modified citrate route and analyzed with SEM, XRD, TEM and XPS techniques regarding the state of palladium. Integration of Pd into the perovskite lattice was compared with impregnation onto the support. Clear indications of Pd-substitution in the La-based perovskites were found by XPS and SEM. The integrated Pd-ions diffuse out of the perovskite lattice under reductive conditions forming metallic palladium nano-particles (less than 15 nm size) while the Pd particles obtained via the impregnation route were in the order of 80 nm. In the selective catalytic reduction of NO by propene, up to 35% NO conversion at 250 °C were obtained at a very low W/F of 0.015 g s mL$^{−1}$, with decreasing tendency at increasing oxygen content. Differences between impregnated and Pd-integrated catalysts were obvious only at high O$_{2}$ content (5 vol.%) where the Pd-integrated catalyst exhibited a lower tendency to oxidize the propene reductant.
Starting Page	1723
Ending Page	1727
Page Count	5
File Format	PDF
ISSN	10225528
Journal	Topics in Catalysis
Volume Number	52
Issue Number	13-20
e-ISSN	15729028
Language	English
Publisher	Springer US
Publisher Date	2009-07-09
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pd-integrated perovskites SCR of NO Propene Characterization and Evaluation of Materials Industrial Chemistry/Chemical Engineering Pharmacy Physical Chemistry Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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