• n2o catalytic decomposition over nano-sized particles of co-substituted fe3o4 substrates

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 983
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a novel total decomposition of n2o was performed on the nano-sized particles of substituted coxfe3−xo4magnetite (with x = 0–1). the given results showed that the partial incorporation of fe2+ by co2+ into fe3o4spinel substrate led to a significant amelioration in the catalytic activity for the n2o catalytic reaction. furthermore, the catalytic activity of prepared substances depended on the fe2+ substitution amount by co2+ cation. the n2o conversion achieved 100% over the nano-sized co0.6fe2.4o4 catalyst at 255, 285 and 291 °c for pure n2o, n2o with the presence of oxygen and n2o in the presence of water steam, respectively. a relative increasing of decomposition temperatures was observed after o2 addition. moreover, the characterization of all samples showed that the catalyst surfaces contain nano-size particles accompanied by well distribution.

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