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镧系元素Dawson结构钨钒磷四元杂多配合物的合成、表征以及对H2O2分解的催化活性
Synthesis,Characterization and Catalytic Activity for H2O2 Decomposition of Tetrabasic Tugstovanadophosphate Heteropoly Rare Earth Element Complexes with Dawson Structure
【摘要】 合成了通式为Ｋ１５Ｈ３［Ｃｅ(Ｐ２Ｗ１６ＶＯ６１)２］·６１Ｈ２Ｏ、Ｋ１５Ｈ４［Ｌｎ(Ｐ２Ｗ１６ＶＯ６１)２］·ｘＨ２Ｏ（Ｌｎ＝Ｌａ￣（３＋），Ｐｒ￣（３＋），Ｎｄ￣（３＋），Ｓｍ￣（３＋），Ｅｕ￣３＋，Ｇｄ￣（３＋），Ｄｙ￣（３＋），Ｙｂ￣（３＋））的９种镧系元素Ｄａｗｓｏｎ结构的钨钒磷四元杂多配合物，并用ＩＲ、ＵＶ、ＮＭＲ、ＥＳＲ、ＸＲＤ、ＴＧ－ＤＴＡ等对其结构和性质进行了研究。该类配合物具有与Ｋ１６［Ｃｅ（Ｐ２Ｗ（１７）ＶＯ（６１））２］·５０Ｈ２Ｏ类似的结构，对Ｈ２Ｏ２分解有较高的催化活性。
【Abstract】 Nine tetrabasic tungstovanadophosphate heteropoly rare earth element complexeswith Dawson structure were synthesized. Their general molecular formulas are K15H4[Ln·(P2W16VO61)2]·xH2O(Ln=La3+,Pr3+,Nd3+, Sm3+,Eu3+,Gd3+,Dy3+,Yb3+). Theirstructures and properties were investigated by IR,UV,NMR,ESR,XRD,TG-DTA. Theresults showed that the series of complexes have the same structure asK16[Ce(P2W17O61)2]·50H2O. At the same time, the catalytic activity of the complexes forH2O2-decomposition was also investigated.
【Key words】 Heteropoly complexes； Synthesis and characterization； Decomposition of H2O2；
- 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,1996年04期
- 【分类号】O614
- 【被引频次】4
- 【下载频次】107