中文摘要：

有 La 的不同内容的 La-ZSM-5 沸石被材料的物理化学的性质是的热水的 method.The 综合英尺红外分析的 studied.The 结果显示 La 可能被合并到分析显示出的 ZSM-5 zeolite.The NH3-TPD 的框架沸石的弱酸地点的数量与连续地增加的 La 减少了 content.Afterwards ， La-ZSM-5 沸石被用作对丙烷 dehydrogenation.The 测试结果的 PtSnNa 催化剂的支持

英文摘要：

The La-ZSM-5 zeolite with different contents of La was synthesized by the hydrothermal method. The physico-chemical properties of the materials were studied. The results of FT-IR analyses indicated that La might be incorporated into the framework of ZSM-5 zeolite. The NH3-TPD analyses showed that the amount of weak acid sites of the zeolite decreased with a continuously increasing La content. Afterwards, the La-ZSM-5 zeolite was used as the support of PtSnNa catalyst for propane dehydrogenation. The test results revealed that the utilization of La- ZSM-5 zeolite could achieve a high propene conversion, and effectively inhibit the coke formation on the catalyst surface. When the content of La was 0.16%, the catalytic activity and stability of the catalyst got the best of its performance. Besides, the PtSnNa/La （0.16%）-ZSM-5 catalyst is more stable than the conventional PtSnNaLal ZSM-5 catalysts.