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研究了不同类型铂硅铝催化剂的铂分散度,并考察了它和催化剂的酸性及活性等相互之间的关系。发现当改变酸性或铂分散度时,催化剂的铂总面积和酸性以及活性三者之间都有平行变化的趋势。这些结果都可用表面复合体生成的观点解释,但与分离中心的观点有所矛盾。
The platinum dispersions of different types of platinum-silica-alumina catalysts were investigated, and the relationship between them and the acidity and activity of the catalysts was also investigated. It is found that when the acidity or the dispersion degree of platinum are changed, the total area and acidity of the catalyst and the activity of the catalyst tend to change in parallel. These results can be explained by the viewpoints of surface complex generation, but contradict the viewpoint of the separation center.