| Oxidative dehydrogenation of ethane over RE-NiO （RE=La, Nd, Sm, Gd） catalysts |
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| 引用本文： | 周琴,周迪珊,吴瑛,吴廷华.Oxidative dehydrogenation of ethane over RE-NiO （RE=La, Nd, Sm, Gd） catalysts[J].中国稀土学报(英文版),2013,31(7):669-673. |
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| 作者姓名： | 周琴 周迪珊 吴瑛 吴廷华 |
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| 作者单位： | Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China |
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| 基金项目： | Project supported by National Natural Science Foundation of China （21003108） |
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| 摘 要： | RE-NiO(RE=La,Nd,Sm,Gd) catalysts were prepared by a modified sol-gel method and characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM),BET surface area analysis,H 2 temperature-programmed reduction(H 2-TPR),and O 2 temperature-programmed desorption(O 2-TPD).The oxidative dehydrogenation of ethane(ODHE) to ethylene was applied to evaluate catalytic performance of the samples.The results showed that the doping of RE affected the physicochemical properties of the catalysts.The strong interaction between Gd and NiO played an important role in the lessened reducibility and the distribution of adsorbed oxygen species,consequently influenced the catalytic performance.The best yield to ethylene of 29% was obtained over the Gd-NiO catalyst with an ethane conversion of 56%.
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| 关 键 词： | rare-earth oxide modified sol-gel method interaction ethane oxidative dehydrogenation |
| 收稿时间： | 29 October 2012 |
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