Direct decomposition of NO into N2 and O2 on BaMnO3-based perovskite oxides

Hideharu Iwakuni, Yusuke Shinmyou, Hiroshi Yano, Hiroshige Matsumoto, Tatsumi Ishihara

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    87 Citations (Scopus)

    Abstract

    Effects of dopant in BaMnO3 perovskite oxide on the NO direct decomposition activity were investigated. NO direct decomposition activity was greatly elevated by doping La and Mg for Ba and Mn site in BaMnO3, respectively. The highest N2 yield was achieved on Ba0.8La0.2Mn0.8Mg0.2O3. The NO decomposition rate increased with increasing NO partial pressure with PNO1.19. Coexistence of oxygen lowered the N2 yield with PO2- 0.18; however, N2 yield of 40% was sustained even under coexisting of 5% O2 at 1123 K. Adsorption state of oxygen was also studied with temperature programmed desorption (TPD) method and the desorption temperature of oxygen was lowered by doping Mg for Mn site in BaMnO3.

    Original languageEnglish
    Pages (from-to)299-306
    Number of pages8
    JournalApplied Catalysis B: Environmental
    Volume74
    Issue number3-4
    DOIs
    Publication statusPublished - Jul 31 2007

    All Science Journal Classification (ASJC) codes

    • Catalysis
    • Environmental Science(all)
    • Process Chemistry and Technology

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