Hydrogen production from steam reforming of ethanol over Ni/MgO-CeO_2 catalyst at low temperature
来源期刊：JOURNAL OF RARE EARTHS2009年第6期
论文作者：CHEN Weiqing LIU Chengwei SHI Qiujie
Key words：hydrogen production from steam reforming of ethanol; Ni; solid-phase burning method; MgO-CeO_2; rare earths;
Abstract: MgO, CeO_2 and MgO-CeO_2 with different mole ratio of Mg:Ce were prepared by solid-phase burning method. Catalysts Ni/MgO,Ni/CeO_2 and Ni/MgO-CeO_2 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 char-aetedzed 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/CeO_2 and Ni/MgO-CeO_2. The catalysts sup-ported 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.
CHEN Weiqing1，LIU Chengwei1，SHI Qiujie1
(1.Institute of Applied Chemistry,Nanchang University,Nanchang 330031,China)
Abstract:MgO, CeO_2 and MgO-CeO_2 with different mole ratio of Mg:Ce were prepared by solid-phase burning method. Catalysts Ni/MgO,Ni/CeO_2 and Ni/MgO-CeO_2 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 char-aetedzed 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/CeO_2 and Ni/MgO-CeO_2. The catalysts sup-ported 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.
Key words:hydrogen production from steam reforming of ethanol; Ni; solid-phase burning method; MgO-CeO_2; rare earths;
【全文内容正在添加中】
