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The promoting influence of nickel species in the controllable synthesis and catalytic properties of nickel-ceria catalysts

机译：镍物种的促进影响可控合成和催化特性nickel-ceria催化剂

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In this paper, a series of well-dispersed nickel-ceria catalysts with high surface area were successfully fabricated using a simple solvothermal approach and characterized by XRD, TEM, EDS, N-2-sorption, Raman and TPR techniques. The results show that the amount of nickel species can have an impact on the morphology of the nickel-ceria catalysts, i.e. the hollow structure, particle size and porous structures. The prepared nickel-ceria samples (with the atomic ratio Ni : Ce (At% (Ni/Ce)) at approximately 6.58%) exhibit high catalytic performance in carbon monoxide (CO) oxidation with 100% conversion at 200 degrees C. The XRD, Raman, XPS and H-2-TPR data confirm that the nickel species are the main promoting factor in the catalysis, including the doped nickel species, highly dispersed free NiO and the interfacial Ni-[O]-Ce structures. Further, the as-prepared nickel-ceria catalysts show high stability in the catalysis.
机译：在本文中,一系列的说法nickel-ceria催化剂具有高表面积被成功的使用一个简单的吗由XRD、solvothermal方法和特点TEM、EDS、N-2-sorption、拉曼和TPR技术。结果表明,镍的含量物种的形态学影响nickel-ceria催化剂,即空心结构、颗粒大小和多孔结构。的准备(nickel-ceria样本原子比倪:Ce (% (Ni / Ce))大约6.58%)表现出高的催化一氧化碳(CO)氧化的性能100%的转换在200度c, XRD,拉曼、XPS和H-2-TPR数据确认镍物种是主要的促进因素催化作用,包括掺杂镍物种,高度分散的自由NiO和界面Ni - [O] ce结构。好nickel-ceria催化剂显示高催化的稳定。

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