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首页> 外文期刊>Electroanalysis >A Non-Enzymatic Glucose Sensor Based on Ni/MnO2 Nanocomposite Modified Glassy Carbon Electrode
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A Non-Enzymatic Glucose Sensor Based on Ni/MnO2 Nanocomposite Modified Glassy Carbon Electrode

机译：基于Ni / MnO2纳米复合修饰玻碳电极的非酶葡萄糖传感器

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摘要

A novel flower like 3D nickel/manganese dioxide (Ni/MnO2) nanocomposite was synthesized by a kind of simple electrochemical method and the formation mechanism of flower like structure was also researched. In addition, morphology and composition of the nanocomposite were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Then the Ni/MnO2 nanocomposites were applied to fabricate electrochemical non-enzymatic glucose sensor. The electrochemical investigation for the sensor indicated that it possessed an excellent electrocatalytic property for glucose, and could applied to the quantification of glucose with a linear range from 2.5x10(-7) to 3.5x10(-3)M, a sensitivity of 1.04mAmM(-1)cm(-2), and a detection limit of 1x10(-7)M (S/N=3). The proposed sensor also presented attractive features such as interference-free, and long-term stability. The present study provided a general platform for the one-step synthesis of nanomaterials with novel structure and can be extended to other optical, electronic and magnetic nanocompounds.
机译：通过一种简单的电化学方法合成了新型的花状3D镍/二氧化锰（Ni / MnO2）纳米复合材料，并研究了花状结构的形成机理。另外，通过扫描电子显微镜（SEM），透射电子显微镜（TEM）和X射线光电子能谱（XPS）表征了纳米复合材料的形态和组成。然后应用Ni / MnO2纳米复合材料制备电化学非酶葡萄糖传感器。传感器的电化学研究表明，它对葡萄糖具有优异的电催化性能，可用于定量范围为2.5x10（-7）至3.5x10（-3）M的葡萄糖，灵敏度为1.04mAmM （-1）cm（-2），检测极限为1x10（-7）M（S / N = 3）。拟议的传感器还具有吸引人的功能，如无干扰和长期稳定性。本研究为结构新颖的纳米材料的一步合成提供了一个通用平台，可以扩展到其他光学，电子和磁性纳米化合物。

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