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在金电极上，用电化学方法将单缺位Ｄａｗｓｏｎ型磷钨杂多酸盐ａ２－Ｋ１０Ｐ２Ｗ１７Ｏ６１１５Ｈ２Ｏ的阴离子（Ｐ２Ｗ１７）掺杂到聚吡咯（ＰＰｙ）薄膜中，制成ＰＰｙ／Ｐ２Ｗ１７／Ａｕ的Ｈ２Ｏ２传感器。研究了它对 Ｈ２Ｏ２电还原过程的催化机理．其 ｉｐｅ与 ＣＨ２Ｏ２在 ６．０× １０－５～８． ８×１０－４ ｍｏｌ／Ｌ和８．８×１０－４～６．０×１０－３ｍｏｌ／Ｌ范围内呈良好的线性关系，检测下限为４．０×１０－５ｍｏｌ／Ｌ。用于模拟水样中Ｈ２Ｏ２的测定，结果较满意．
On the gold electrode, the anions (P2W17) of mono-vacancies Dawson-type heteropolyphosphoric salt a2-K10P2W17O6115H2O were doped into polypyrrole (PPy) thin films electrochemically to produce PPy / P2W17 / Au H2O2 sensors . The catalytic mechanism of H2O2 reduction was studied. The ipe and CH2O2 at 6.0 × 10-5 ~ 8. The linear range was 8 × 10-4 mol / L and 8.8 × 10-4 ~ 6.0 × 10-3 mol / L with the detection limit of 4.0 × 10-5 mol / L. Used to simulate the determination of H2O2 in water samples, the results are satisfactory.