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采用ＴＰＯ及ＴＧ－ＤＴＡ等方法，对顺式Ｐｔ（ＮＨ３）２Ｃｌ２在Ｋβ及ＫＬ沸石上的分解过程进行了研究，并与还原后铂粒子的分散状态及其对正己烷芳构化的催化性能相关联．发现Ｋβ沸石上较强的酸性及其孔道特点，使得顺铂中氨配体解离后较难离开沸石孔道，而发生自还原现象，因此导致铂粒子的聚集；在ＫＬ沸石上，可以避免自还原的发生．β沸石经碱金属离子交换后，其酸性强弱依次为Ｌｉβ＞Ｎａβ＞Ｋβ＞Ｒｂβ＞Ｃｓβ．沸石上酸性越强，则发生自还原的程度越大，因此所负载的铂粒子越大；表现在催化性能上，Ｐｔ／ＫＬ比Ｐｔ／β沸石系列显示出更优越的芳构化性能
The decomposition process of cis-Pt (NH3) 2Cl2 on Kβ and KL zeolites was investigated by TPO and TG-DTA methods. The dispersion state of Pt particles and its catalytic performance for n-hexane aromatization Associated. It is found that the stronger acidity of Kβ zeolite and its pore characteristics make it more difficult for ammonia ligand in cisplatin to leave the zeolite pore after self-reduction, which leads to the aggregation of platinum particles. On KL zeolite, The occurrence of the restoration. After zeolite beta exchanged by alkali metal ions, its acidity and order were Liβ> Naβ> Kβ> Rbβ> Csβ. The stronger the acidity of the zeolite, the greater the degree of self-reduction occurs and thus the larger the supported platinum particles; the performance of the Pt / KL zeolite shows superior aromatization over the Pt / KL zeolite series