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首页> 外文期刊>Crystal Research and Technology: Journal of Experimental and Industrial Crystallography >THE EFFECT OF FLUORIDE CONCENTRATION AND CATALYST PREPARATION METHOD ON STRUCTURAL AND THERMAL PROPERTIES OF COMO/AL2O3 CATALYSTS
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THE EFFECT OF FLUORIDE CONCENTRATION AND CATALYST PREPARATION METHOD ON STRUCTURAL AND THERMAL PROPERTIES OF COMO/AL2O3 CATALYSTS

机译：氟化物浓度和催化剂制备方法对COMO / AL2O3催化剂的结构和热性质的影响

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The effect of the sequence of incorporation of F-ions on the properties of fluorinated CoMo/AlsO(3) catalysts was investigated by the methods of X-ray diffraction, infrared spectroscopy and thermal analysis. Three kinds of samples were prepared into which the F-ions were introduced either simultaneously with Co and Mo (sample labelled as CoMoF), or prior to them (F/CoMo) or after them (CoMo/F). The samples contained fixed amounts of Mo (15 wt.% MoO3) and Co (3 wt.% CoO). Formation of surface di-and polymolybdate species as well as Al-F was evidenced in all samples. The concentration of molybdenum containing species was the highest in CoMoF sample, while that of fluoride containing species was the highest in CoMo/F samples. [References: 13]
机译：通过X射线衍射，红外光谱和热分析方法研究了F离子掺入顺序对氟化CoMo / AlsO（3）催化剂性能的影响。制备了三种样品，其中的F离子与Co和Mo同时引入（标为CoMoF的样品），或者在它们之前（F / CoMo）或之后（CoMo / F）引入。样品包含固定量的Mo（15 wt。％MoO3）和Co（3 wt。％CoO）。在所有样品中均证实形成了表面二钼和多钼酸盐物种以及Al-F。在CoMoF样品中，含钼物质的浓度最高，而在CoMo / F样品中，含氟物质的浓度最高。 [参考：13]

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