• ni–co–cu supported on pseudoboehmite-derived al2o3: highly efficient catalysts for the hydrogenation of organic functional groups

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 912
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    • شماره تماس دبیرخانه رویداد: -
     ni–co–cu catalysts supported on pseudoboehmite-derived al2o3 were developed for efficient hydrogenation of organic functional groups: cn and no2 associated with benzene as well as single bondctriple bond; length of mdashcsingle bond in butynediol. factors such as thermo-treatment of pseudoboehmite, ni loading, cu and co content, and catalyst operating parameters were systematically studied. among the catalysts, 20%ni–3%cu–5%co/al2o3 performed the best, showing 100% feed conversion and 84–99.8% selectivity of target products. techniques such as n2sorption measurement, scanning electron microscope, hydrogen temperature-programmed reduction and desorption, x-ray photoelectron spectroscopy, and in situ x-ray diffraction were used to characterize the catalysts. the superior performance of the catalyst can be attributed to synergetic interaction among the ni–cu–co constitutes as well as enhancement of ni2+ reduction and ni0 dispersion that are resulted due to the co-presence of cu and co.

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