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以自制的H4PMo11VO40作为质子酸掺杂剂兼辅助氧化剂,配合过硫酸铵氧化剂,采用固相研磨法制备了H4PMo11VO40/聚苯胺复合电容材料。通过X-射线衍射(XRD)、红外光谱(IR)对产物的结构特征进行表征,证实得到的产物确为掺杂复合材料,且该法所得产物结构有序、晶化率较好。以产物在0.5mol/L H2SO4电解液中的循环伏安曲线为指标,重点考察了H4PMo11VO40与过硫酸铵在氧化聚合苯胺时的最佳配合比例,以期得到电容性能较好的复合材料。结果表明,在苯胺单体、PMo11V与过硫酸铵的物质量比为1:1/3:9/10时,在-0.1~0.7V电位范围内,材料的比电容值最大,电容特性最优。
H4PMo11VO40 / polyaniline composite capacitor material was prepared by the solid-phase milling method with homemade H4PMo11VO40 as a proton acid dopant and auxiliary oxidant, with ammonium persulfate oxidant. The structure of the product was characterized by X-ray diffraction (XRD) and infrared spectroscopy (IR), and the obtained product was confirmed to be doped composite material. The product obtained by this method was ordered and the crystallization rate was good. Taking the cyclic voltammetry curve of the product in 0.5 mol / L H2SO4 electrolyte as an index, the best proportion of H4PMo11VO40 and ammonium persulfate in the oxidative polymerization of aniline was investigated emphatically, in order to obtain the composite material with better capacitive performance. The results showed that in the range of -0.1 ~ 0.7V, the specific capacitance of the material was the highest and the capacitance characteristic was the best when the mass ratio of aniline monomer, PMo11V and ammonium persulfate was 1: 1/3: 9/10. .