分子筛超笼中酞菁钴的原位合成与表征  

SYNTHESIS AND CHARACTERIZATION OF THE ENCAPSULATED COBALT PHTHALOCYANINE IN SUPERCAGES OF ZEOLITE

作　　者：梁士昌[1] 周家顺[1] 邓文安[1] 刘东[1] 刘晨光[1] 阙国和[1] 

机构地区：[1]石油大学化学化工学院,山东东营257061

出　　处：《石油大学学报（自然科学版）》2001年第3期55-58,共4页Journal of the University of Petroleum,China(Edition of Natural Science)

基　　金：国家自然科学基金资助项目 (2 9776 0 31)

摘　　要：以NaY分子筛为载体 ,利用其晶胞直径约为 1.2～ 1.3nm的八面沸石超笼结构 ,通过邻苯二甲腈的四聚反应将酞菁钴在Co2 +交换的NaY分子筛超笼里进行了原位合成 ,用紫外可见光谱分析、傅立叶变换红外可见光谱分析、比表面积分析和热分析技术对合成的催化剂进行了表征 ,并对CoNaY分子筛中酞菁钴的原位合成过程与机理进行了初步探讨。实验结果表明 ,合成的催化剂与纯酞菁钴有相似的紫外和红外吸收谱峰 ,这表明分子筛超笼中确实生成了酞菁钴。差热分析结果表明 ,超笼中生成的酞菁钴比纯化合物热稳定性好。Cobalt phthalocyanine is synthesized in\|situ within the supercage of zeolites through the tetramerization of dicyanobenzene taking NaY zeolites as the carriers. The diameter of the unit cell in supercage of zeolites is 1.2～1.3 nm. The prepared catalysts are characterized using FT IR, UV vis, BET and DTA methods. The process and mechanism of CoPC synthesis in\|situ within NaY zeolites are discussed. The experiments indicate that the prepared catalysts and pure CoPC have the similar specific spectrograms of FT\|IR and UV\|vis. This verifies that cobalt phthalocyanines are indeed synthesized in the supercages. The data of DTA indicate that the CoPC encapsulated in the supercages has higher heat\|resistance than the pure. The base\|catalysis mechanism for synthesis of cobalt phthalocyanines in the supercages is proposed.

关 键 词：分子筛 超笼 酞菁钴 原位合成 表征 邻苯二甲腈 四聚反应 催化剂 差热分析 

分 类 号：O643.36[理学—物理化学] TQ426[理学—化学]