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以(NH4)6Mo7O24.4H2 O,NiSO4和(NH4)2S2O8为原料合成了(NH4)6[NiMo9O32].8H2O杂多酸盐,并利用化学分析、差热热重、红外光谱、紫外光谱、循环伏安等方法对其进行了元素分析、结构及性质的研究。样品的红外光谱分析显示:在1000-400cm-1处由两组突出的峰组成,显示出Waugh结构单元的特征谱带;紫外可见光谱分析显示:紫外区吸收峰位置为207nm处,可见区吸收峰位置为563.2nm;差热-热重分析显示:该化合物在1067.9-1103.5K分解,说明具有较高热稳定性;循环伏安曲线显示:该电极反应为半可逆过程,是以扩散控制的表面氧化还原过程,且伴随质子化。
(NH4) 6 [NiMo9O32] .8H2O heteropolyacid salt was synthesized from (NH4) 6Mo7O24.4H2O, NiSO4 and (NH4) 2S2O8 using chemical analysis, DTA, IR and UV spectroscopy. Voltammetry and other methods of its elemental analysis, structure and properties of the study. The infrared spectrum analysis of the sample showed that the peak of the Waugh structure was observed at 1000-400cm-1, which showed the characteristic bands of Waugh’s structure unit. The UV-visible spectrum showed that the UV absorption peak was at 207nm, The peak position was 563.2 nm. Differential thermal analysis showed that the compound was decomposed at 1067.9-1103.5K, indicating high thermal stability. The cyclic voltammogram showed that the electrode reaction was semi-reversible and diffusion-controlled Redox process, accompanied by protonation.