三过氧铌钨磷杂多酸盐的合成表征及催化性能  

Synthesis, Characterization and Catalysis of Heteropolytungstates Containing Triperoxoiobium

作　　者：马荣华[1] 李宝利[1] 赵宝中[1] 陈亚光[1] 瞿伦玉[1] 

机构地区：[1]东北师范大学化学系

出　　处：《东北师大学报（自然科学版）》1996年第2期64-68,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：合成了新的含三过氧铌的钨磷杂多酸盐：Ｍ４Ｈ２［ＰＷ９（ＮｂＯ２）３Ｏ３７］Ｍ＝Ｍｅ４Ｎ＋（ＴＭＡ）Ｅｔ４Ｎ＋（ＴＥＡ），Ｂｕ４Ｎ＋（ＴＢＡ），Ｈｅ４Ｎ＋（ＴＨＡ）；三铌取代的钨磷酸盐：Ｍ６［ＰＷ９Ｎｂ３Ｏ４０］ｘＨ２Ｏ（Ｍ＝ＴＢＡ和Ｋ＋）．ＩＲ和ＵＶ光谱、极谱和循环伏安，ＸＰＳ，Ｉ－—滴定证明［ＰＷ９（ＮｂＯ２）３Ｏ３７］６－中有Ｎｂ基存在．氧化催化实验表明：过氧杂多配合物的催化活性远高于非过氧杂多配合物．The new heteropoly tungstophosphates containing triperoxoniobium M4H2[PW9 (NbO2)3O37], M = Me4N+ (TMA) ,Et4N+ (TEA), Bu4N+ (TBA), He4N+(THA), were synthesized and characterized. The results of IR and UV spectra, polarography and cyclic voltammetry, XPS and I- - titration show that Nb groups exist in the complexes. The results of oxidizing catalyzation show that the catalytic activity of these complexes is higher than that of the complexes not containing peroxo ion.

关 键 词：三过氧铌 钨磷杂多酸盐 合成 催化性能 

分 类 号：O641.4[理学—物理化学] O643.36[理学—化学]