【摘要】 采用一种温和且有效的方法,将聚丙烯酸非共价修饰到碳纳米管上,并以其为模板,在碳纳米管上原位均匀的生长铜纳米粒子,制备了铜/聚丙烯酸/碳纳米管(Cu/PAA/CNT)纳米复合材料,并以此材料构建了一种新型的非酶H2O2传感器,研究了其对H2O2的电催化行为。结果表明:铜纳米粒子较均匀的生长在碳纳米管上,制备的纳米复合材料修饰到电极表面对H2O2表现出良好的电流响应,可实现对H2O2的灵敏测定,其响应电流与H2O2的浓度在1.9×10-6～8.0×10-4mol/L范围内呈良好的线性关系,检测限达6.3×10-7mol/L。更多还原

【Abstract】 In this contribution,we employed a moderate and effective in-situ growth approach to load copper nanoparticles on the sidewalls of carbon nanotubes(CNT) for preparation of Cu/PAA/CNT nanocomposites which were used for electrocatalysis of hydrogen peroxide(H2O2).Polyacrylic acid(PAA) was noncovalently functionalized on CNT surfaces and then as a template,it could make copper nanoparticles deposit uniformly on the sidewalls of carbon nanotubes.A novel non-enzymatic H2O2 sensor(Cu/PAA/CNT/GCE) was constructed,and it exhibited good electrocatytic activity for the reduction of H2O2.The linear calibration ranged from 1.9×10-6 to 8.0×10-4 mol/L with a detection limit of 6.3×10-7 mol/L.更多还原