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根据固体超强酸催化剂ＳＯ４２－ －ＭｏＯ３－ＺｒＯ２的特点， 结合活性评价结果， 用ＢＥＴ、ＤＴＡ／ＴＧ、ＸＲＤ、ＬＲＳ等方法， 对其进行了物性表征， 考察了催化剂的结构形态、性质随催化剂组成的变化， 以及催化剂的物性结构特点与催化活性的关系． 研究结果表明， ＭｏＯ３含量对催化剂活性有着显著影响； 催化剂的比表面积随ＭｏＯ３的含量变化存在极大值； ＭｏＯ３具有延迟ＺｒＯ２晶化、稳定ＳＯ４２－ 的作用， 并提高了ＳＯ４２－ 的高温稳定性； 当含量为分散阈值时， 其对催化剂性能的改善作用达到最优， 这时催化剂的催化性能最佳．
According to the characteristics of solid superacid SO42- -MoO3-ZrO2 and the activity evaluation results, the properties of the catalyst were characterized by BET, DTA / TG, XRD and LRS. The morphologies and properties of the catalysts were investigated with the catalyst composition Of the changes, as well as the physical properties of the catalyst and the relationship between catalytic activity. The results show that the MoO3 content has a significant effect on the catalyst activity; the specific surface area of the catalyst varies greatly with the content of MoO3; MoO3 has the effect of retarding crystallization of ZrO2, stabilizing SO42- and increasing the high temperature stability of SO42-; When the content is the dispersion threshold, the effect of improving the performance of the catalyst to achieve the best, then the best catalytic performance of the catalyst.