@article { author = {Nemati, A. and Khodadadi, A.A. and Mortazavi, Y. and Alinezhadchamazketi, A.}, title = {Pd/LaxSr1-xFeO3 perovskite nanocatalysts for selective catalytic reduction of NOx by hydrogen}, journal = {Scientia Iranica}, volume = {22}, number = {6}, pages = {2341-2349}, year = {2015}, publisher = {Sharif University of Technology}, issn = {1026-3098}, eissn = {2345-3605}, doi = {}, abstract = {In this study, LaxSr1-xFeO3 (x = 0, 0.8) perovskite-type catalysts were prepared by gel combustion method and then 1.0 wt% palladium was loaded on them by a dry impregnation. The catalysts were characterized by XRD, SEM, H2-TPR, O2-TPD, NO-TPD and BET surface area techniques.H2-TPR profiles of the Pd/perovskite catalyst shows the reduction of Pd at around 140˚C which facilitates the reduction of NO in the H2-SCR. TPD results reveal that the substitution of Sr in the perovskites structure remarkably decreases the oxygen mobility and increases the NO adsorption. The H2-SCR of NO on the catalysts was performed in a temperature-programmed reaction apparatus in the presence of oxygen.The effect of carbon monoxide in the feed on H2-SCR was also investigated. The PLSFOcatalyst (1.0 wt% Pd/La0.8Sr0.2FeO3 shows the highest NO conversion and N2 selectivity at a moderate temperature of 190oC.}, keywords = {Hydrogen,NO,Palladium,perovskite,Selective Catalytic Reduction}, url = {https://scientiairanica.sharif.edu/article_3785.html}, eprint = {https://scientiairanica.sharif.edu/article_3785_1aecec643c5c6ee5609ee674cc2b221c.pdf} }