期刊
JOURNAL OF RARE EARTHS
卷 27, 期 6, 页码 948-954出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(08)60368-3
关键词
hydrogen production from steam reforming of ethanol; Ni; solid-phase burning method; MgO-CeO2; rare earths
资金
- National Natural Science Foundation of China [20863006]
- Natural Science Foundation of Jiangxi Province, China [0620042]
- Department of Education of Jiangxi Province [GJJ09078]
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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