Journal
CATALYSIS COMMUNICATIONS
Volume 37, Issue -, Pages 105-108Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2013.03.039
Keywords
Pervoskite catalyst; NO oxidation; Active oxygen; NO adsorption
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Funding
- GM Global Research Development [RD-07-312-NV487]
- National High Technology Research and Development Program of China (863 Program) [2011AA03A405]
- Natural Science Foundation of China [50972104]
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The catalytic performance of LaMeO3 (Me = Mn, Fe, Co) perovskite prepared by a sol-gel method was studied. These catalysts were characterized by X-ray diffraction (XRD), N-2 adsorption (BET), H-2 temperature programmed reduction (TPR), NO temperature programmed desorption (TPD) and CO-O-2 pulse. LaCoO3 exhibited the best activity than that of LaFeO3 and LaMnO3 even after hydrothermal ageing. The activity sequence is in accordance with the reducibility of the samples. The activated oxygen species and adsorbed NO play key roles in the NO oxidation reaction. (C) 2013 Elsevier B.V. All rights reserved.
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