Construction of hybrid nanocomposites containing Pt nanoparticles and poly(3-methylthiophene) nanorods at a glassy carbon electrode: Characterization, electrochemistry, and electrocatalysis
Construction of hybrid nanocomposites containing Pt nanoparticles and poly(3-methylthiophene) nanorods at a glassy carbon electrode: Characterization, electrochemistry, and electrocatalysis
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在玻碳电极上构建含有 Pt 纳米颗粒和聚（3-甲基噻吩）纳米棒的杂化纳米复合材料：表征、电化学和电催化
DOI：
10.1016/j.electacta.2010.05.043
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发表时间：
2010-08
影响因子：
6.6
通讯作者：
Wang, Lun
中科院分区：
文献类型：
--
作者：
Zhou, Yuan;Xian, Hongying;Li, Feng;Wu, Shengnan;Lu, Qiufang;Li, Yongxin;Wang, Lun
采用原位循环伏安法（CV）成功制备了玻碳表面含有 Pt 纳米颗粒（nano-Pt）和聚（3-甲基噻吩）（P3MT）纳米棒的杂化纳米复合材料。使用场发射扫描电子显微镜（FE-SEM）、电化学阻抗谱（EIS）和循环伏安图来表征这些纳米复合材料的性能。 SEM 图像显示纳米 Pt 位于 P3MT 纳米棒的表面，并形成三维 (3D) 多孔纳米结构。 EIS和CV结果表明这些杂化纳米复合材料具有良好的导电性，并且可以加速氧化还原离子的电子转移速率。从甲醇和亚硝酸盐的电化学氧化结果中，我们观察到这种纳米复合材料修饰的电极表现出优异的电催化活性，可能可用于生物传感器和/或燃料电池。
Hybrid nanocomposites containing Pt nanoparticles (nano-Pt) and poly(3-methylthiophene) (P3MT) nanorods at glassy carbon surfaces have been successfully prepared by use of an in situ cyclic voltammetry (CV) method. Field emission scanning electron microscope (FE-SEM), electrochemical impedance spectroscopy (EIS) and cyclic voltagrams were used to characterize the properties of these nanocomposites. SEM images showed that nano-Pt were located on the surface of P3MT nanorods and that they formed a three-dimensional (3D) porous nanostructure. EIS and CV results demonstrated that these hybrid nanocomposites had good conductivities, and could accelerate the electron-transfer rates of redox ions. From the results of electrochemical oxidation of methanol and nitrite, we observed that this nanocomposite-modified electrode exhibited excellent electrocatalytic activity, which might be useful in biosensors and/or fuel cells.
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