• study of cuo/ceo2 catalyst with for preferential co oxidation reaction in hydrogen-rich feed (prox-co)

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1098
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the cuo/ceo2 system was investigated as a catalyst for preferential co oxidation reaction in hydrogen-rich feed (prox-co). the catalysts were prepared by deposition–precipitation (dep) and co-precipitation (cop) methods and the catalytic performance reveals that the preparation method influences the properties of solids prepared, where a direct consequence is the difference in behavior of the catalysts in the prox-co reaction. a high specific area and a better dispersion of the metallic phase were obtained in the catalyst prepared by co-precipitation. the redox properties during the reaction were reported by measures of temperature programmed reduction (tpr), osc measurements and x-ray absorption near edge structure (xanes-tpr) in situ showed the relationship between the preparation method, the physico-chemical characteristics and redox properties in the prox-co reaction. by this means, the good dispersion of cuo and the best oxygen capacity are the response of the high performance of cuo/ceo2-cop catalysts for the prox-co reaction.

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