论文部分内容阅读
用复分解法首次合成了5种Keggin结构钨钼磷混配杂多酸盐MxPW4Mo8O40·nH2O(M=Et4N,Bu4N,K,Ba,Zn),通过IR,UV,DTTGA,极谱及循环伏安对它们进行了表征.结果表明它们具有Keggin结构,热稳定性大小顺序为:K+>Ba2+>H+>Zn2+>Et4N+>Bu4N+,氧化还原机理为两步单电子的可逆还原过程.
Five kinds of heteropolyacid MxPW4Mo8O40 · nH2O (M = Et4N, Bu4N, K, Ba, Zn) were synthesized by complex decomposition method for the first time. Five kinds of heteropolyacid MxPW4Mo8O40 · nH2O were synthesized by IR, UV, DTTGA, polarography and cyclic voltammetry They are characterized. The results show that they have the Keggin structure, and the order of thermal stability is K +> Ba2 +> H +> Zn2 +> Et4N +> Bu4N +. The redox mechanism is the reversible reduction of two-step single electron.