Hydrogen production from steam reforming of ethanol over Ni/MgO-CeO2 catalyst at low temperature
来源期刊：Journal of Rare Earths2009年第6期
论文作者：石秋杰 刘承伟 谌伟庆
文章页码：948 - 954
摘 要：MgO,CeO2 and MgO-CeO2 with different mole ratio of Mg:Ce were prepared by solid-phase burning method.Catalysts Ni/MgO,Ni/CeO2 and Ni/MgO-CeO2 were prepared by impregnation method.The catalytic properties were evaluated in ethanol steam reforming（ESR） reaction.Specific surface areas of the supports were measured by nitrogen adsorption-desorption at 77 K,and the catalysts were characterized with X-ray diffraction（XRD）,temperature programmed reduction（TPR） and thermogravimetric（TG）.The results showed that well dispersed NiO,bulk-like NiO phase and NiO interacting with the support co-existed in Ni/CeO2 and Ni/MgO-CeO2.The catalysts supported on composite supports exhibited better performance than that on single supports,and the catalyst with the support of 1:1 mole ratio of Mg:Ce exhibited the optimum activity,selectivity and stability for ESR reaction at low temperature.
石秋杰，刘承伟，谌伟庆
Institute of Applied Chemistry,Nanchang University
摘 要：MgO,CeO2 and MgO-CeO2 with different mole ratio of Mg:Ce were prepared by solid-phase burning method.Catalysts Ni/MgO,Ni/CeO2 and Ni/MgO-CeO2 were prepared by impregnation method.The catalytic properties were evaluated in ethanol steam reforming（ESR） reaction.Specific surface areas of the supports were measured by nitrogen adsorption-desorption at 77 K,and the catalysts were characterized with X-ray diffraction（XRD）,temperature programmed reduction（TPR） and thermogravimetric（TG）.The results showed that well dispersed NiO,bulk-like NiO phase and NiO interacting with the support co-existed in Ni/CeO2 and Ni/MgO-CeO2.The catalysts supported on composite supports exhibited better performance than that on single supports,and the catalyst with the support of 1:1 mole ratio of Mg:Ce exhibited the optimum activity,selectivity and stability for ESR reaction at low temperature.
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