• walnut shell-assisted synthesis of mesoporous magnesia

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1396/07/16
    • تاریخ انتشار در تی پی بین: 1396/07/16
    • تعداد بازدید: 397
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -

    in the present study high surface area amorphous magnesia was synthesized using walnut shell as a template. this green, simple and useful synthetic protocol was based on the precipitation of magnesium nitrate on biomass in an aqueous phase followed by calcination. materials were characterized using x-ray diffraction, scanning electron microscopy and n2 adsorption/desorption porosimetry and the results exhibited high surface area for magnesium oxide. furthermore, the pore size and surface area of these mesoporous materials can be adjusted by varying the biomass/magnesium nitrate ratio. additionally, magnesium oxide was studied as the support of palladium nanoparticles for the aerobic oxidation of alcohols. we have found that resulting pd-loaded material act as an effective catalytic system for the aerobic oxidation of benzylic and aliphatic alcohols. the catalyst can be recovered and reused three times without loss of activity.

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