The methods of silicotungstic acid (SiW) immobilization on conducting substrates were studied. For SiW immobilization by codeposition, poly-o-phenylenediamine (PPD) redox polymer was used. The most effective codeposition of SiW and PPD was demonstrated on a graphene oxide (GO) film. Meanwhile, GO is reduced to form RGO-PPD-SiW electroactive composite. The structure of the novel material was evidenced by cyclic voltammetry and IR and Raman spectra. PPD-SiW and RGO-PPD-SiW composites were studied by impedance spectroscopy, where an equivalent circuit was proposed. Film resistance R_f was shown to decrease in the series of PPD → RGO-PPD → RGO-PPD-SiW. Further, RGO-PPD-SiW has better transfer properties (bulk film diffusion rate). This enabled suggesting that the composite has better electrocatalytic properties than PPD and RGO-PPD as was evidenced for example of [Fe(CN)₆]^4−/3− redox transfer on the electrode coated with the novel material.

研究了硅钨酸（SiW）固定在导电基底上的方法。为了通过共沉积固定SiW，使用了聚邻苯二胺（PPD）氧化还原聚合物。SiW和PPD的最有效共沉积在氧化石墨烯（GO）薄膜上得到了证明。同时，GO被还原以形成RGO-PPD-SiW电活性复合材料。通过循环伏安法，红外和拉曼光谱证明了该新型材料的结构。通过阻抗谱研究了PPD-SiW和RGO-PPD-SiW复合材料，并提出了等效电路。膜电阻R _f在PPD→RGO-PPD→RGO-PPD-SiW系列中显示减少。此外，RGO-PPD-SiW具有更好的转移性能（体膜扩散速率）。这使得该复合材料具有比PPD和RGO-PPD更好的电催化性能，例如在涂覆有该新型材料的电极上的[Fe（CN）₆ ] ^{4- / 3-}氧化还原转移证明。