论文部分内容阅读
用微反脉冲技术考察了SO_4~(2-)/TiO_2和SO_4~(2-)/ZrO_2系列固体超强酸催化剂对戊烷的异构化活性。实验表明:分别在823K和948K下处理得到的SO_4~(2-)/TiO_2823K和SO_4~(2-)/ZrO_2(948K)其异构化活性较佳。这两个温度正好相应于差热分析的高温区吸热峰。本文结合红外光谱分析结果讨论了活性中心模型和其形成机理。
The isomerization activity of pentane on SO_4 ~ (2 -) / TiO_2 and SO_4 ~ (2 -) / ZrO_2 solid superacid catalysts was investigated by micro - pulse technique. The experiments show that the isomerization activity of SO_4 ~ (2 -) / TiO_2823K and SO_4 ~ (2 -) / ZrO_2 (948K) obtained at 823K and 948K respectively is better. These two temperatures correspond exactly to the endothermic peaks in the high temperature region of the differential thermal analysis. In this paper, we discussed the active center model and its formation mechanism with infrared spectroscopy.