采用两亲物质聚苯乙烯-聚丙烯酸共聚(PS-b-PAA)为模板,以钛酸丁酯为前驱体,氯铂酸为掺杂剂,经水热反应获得纳米铂掺杂二氧化钛(TiO_2),并对其电化学传感性能进行了研究。采用红外光谱法分析其结构,X射线单晶衍射研究晶型,循环伏安法研究其催化性能。结果表明,在500℃煅烧得到的TiO_2为锐钛矿型的。可以催化过氧化氢的电化学还原过程。 Amphiphilic polystyrene-polyacrylic acid copolymerization (PS-b-PAA) was used as a template, butyl titanate was used as a precursor, and chloroplatinic acid was used as a dopant to obtain nano-Pt doped TiO 2 ), And its electrochemical sensing performance has been studied. Its structure was analyzed by infrared spectroscopy, its crystal structure was studied by X-ray single crystal diffraction and its catalytic performance was studied by cyclic voltammetry. The results show that the calcined TiO 2 at 500 ℃ is anatase. Can catalyze the electrochemical reduction of hydrogen peroxide.