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- W2029361330 abstract "Conventional lean NOx trap (LNT) catalysts require high loadings of Pt in order to oxidize NO to NO2, a critical step in LNT applications. This paper presents a concept study of using LaMnO3 perovskite as a substitute to Pt in LNT catalyst. The structure, morphology and redox property of LaMnO3 perovskite were probed by TPR, XRD and its performance on NO oxidation to NO2was also evaluated. A LaMnO3 based, PGM free LNT showed good NO oxidation activity and NOx storage capability under lean conditions, but it did not have sufficient NOx reduction activities during LNT regeneration. With the addition of Pd/Rh to provide NOx reduction activities, a LaMnO3-based, Pt-free LNT showed high NOx storage/reduction activities under lean and rich cycling conditions." @default.
- W2029361330 created "2016-06-24" @default.
- W2029361330 creator A5006299368 @default.
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- W2029361330 date "2012-04-01" @default.
- W2029361330 modified "2023-09-25" @default.
- W2029361330 title "Pt-free, LaMnO3 based lean NOx trap catalysts" @default.
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- W2029361330 doi "https://doi.org/10.1016/j.cattod.2011.11.012" @default.
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