College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China.
Colloids Surf B Biointerfaces. 2013 Jan 1;101:106-10. doi: 10.1016/j.colsurfb.2012.05.033. Epub 2012 Jun 9.
We describe a simple method for preparing the hybrid material of Pt nanoparticles (NPs) supported on carbon-coated SnO(2) nanospheres (Pt-SnO(2)@C). The as-prepared Pt-SnO(2)@C nanocomposite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The presence of carbon-coated SnO(2) nanospheres (SnO(2)@C) remarkably improves the electrocatalytic activity of Pt NPs towards hydrogen peroxide (H(2)O(2)) oxidation. The Pt-SnO(2)@C nanocomposite modified glassy carbon (GC) electrode exhibited enhanced amperometric response to H(2)O(2), with detection limit of 0.1 μM and sensitivity of 241.1 μA mM(-1) cm(-2).
我们描述了一种简单的方法来制备 Pt 纳米颗粒（NPs）负载在碳包覆的 SnO(2)纳米球（Pt-SnO(2)@C）上的杂化材料。所制备的 Pt-SnO(2)@C 纳米复合材料通过 X 射线衍射（XRD）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）进行了表征。碳包覆的 SnO(2)纳米球（SnO(2)@C）的存在显著提高了 Pt NPs 对过氧化氢（H(2)O(2)）氧化的电催化活性。Pt-SnO(2)@C 纳米复合材料修饰的玻碳（GC）电极对 H(2)O(2)表现出增强的安培响应，检测限为 0.1 μM，灵敏度为 241.1 μA mM(-1) cm(-2)。
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