基于Pt-HNTs-GE纳米复合材料电化学传感器构置研究

不同纳米及其复合材料构置的电化学传感器以其突出的分析性能,受到研究者越来越多的关注。以埃洛石纳米管(HNTs)和石墨烯(GE)为载体,采用层层组装的方法,构置了以Pt/GE/HNTs纳米复合材料为基础的,无酶电化学传感器,对其电催化行为进行了探讨,创建了葡萄糖测定的电分析新方法。研究表明,对葡萄糖的催化氧化峰电位为0.35 V,峰电流与葡萄糖浓度在3.0×10~(-7)～5.7×10~(-3)mol·L~(-1)时线性关系良好,检出限:1.0×10~(-7) mol·L~(-1) (S/N=3);具有更宽的线性范围和更低的检出限。

Based on Pt-HNTs-GE Nanocomposite Electrochemical Sensor Configuration Research

Electrochemical sensors constructed with different nano and composite materials have attracted more and more attention due to their outstanding analytical performance. In this paper, elorite nanotubes(HNTs) and graphene(GE) were used as carriers. Based on Pt/GE/HNTs nanocomposites, enzyme-free electrochemical sensors were constructed and their electrocatalytic behavior was discussed. The study showed that the peak potential of catalytic oxidation of glucose was 0.35 v, and the peak current had a good linear relationship with glucose concentration at 3.0×10~(-7)～5.7×10~(-3) mol·L~(-1), with detection limit of 1.0×10~(-7) mol·L~(-1)(S/N = 3). It has wider linear range and lower detection limit.