中文摘要：

实验采用化学方法,在FeCl3、K3[Fe（CN）6]和吡咯（Py）共存的混合溶液中,通过Fe3＋引发吡咯单体聚合,同时,利用被还原的Fe2＋和[Fe（CN）6]3-反应生成普鲁士蓝（PB）的反应原理,成功制备了普鲁士蓝-聚吡咯（PB-Ppy）复合物。将上述复合物制备成悬浮液,并滴涂制备了PB-Ppy电极。为了进一步提高电极对H2O2响应的灵敏度,在电极的构筑中引入了MWNTs,制备了PB-Ppy/MWNTs电极。在此基础上,使用微分脉冲伏安（DPV）方法研究了PB-Ppy/MWNTs电极对H2O2的电化学响应。研究表明,PB-Ppy/MWNTs电极对H2O2在25.250.4μmol/L低浓度与在1751 400μmol/L高浓度的范围内具有良好的线性响应。

英文摘要：

Prussian Blue-polypyrrole（PB-Ppy）composite has been successfully prepared by chemical modification method.In this method,pyrrole monomer polymerizes with Ppy trigging by Fe3＋which is reduced to Fe2＋.The resulted Fe2＋ reacts with[Fe（CN）6]3- and forms PB.In order to further improve the sensitivity of the electrode response to H2O2,MWNTs was used to prepare the PB-Ppy/MWNTs electrode.The PB-Ppy/MWNTs modified electrode was then prepared by drop coating method.Differential pulse voltammetry（DPV）technique was applied to study the electrochemical response of PB-Ppy/MWNTs electrode to H2O2.The experimental results show that the PB-Ppy/MWNTs electrode has a good linear response for H2O2 in range of 25.250.4μmol/L and in 1751 400μmol/L.