State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, PR China.
J Colloid Interface Sci. 2013 Apr 15;396:23-8. doi: 10.1016/j.jcis.2012.12.059. Epub 2013 Jan 31.
The Au-Pt@PPy(polypyrrole) with a novel three-dimensional structure was synthesized by a facile one-pot reaction. Raman spectra, transmission electron microscopy (TEM), scanning electron microscopy (SEM), UV-vis spectroscopy (UV-vis), and cyclic voltammograms (CV) were employed to characterize the complex. TEM and SEM results indicated that the products had novel three-dimensional (3D) multi-branch structures, which were controllable by simply adjusting the ratios of HAuCl4 to H2PtCl6 added. Raman characterization proved that the products had significant surface-enhanced Raman effect with the aid of long-range effect of the enhanced electromagnetic (EM) field and roughness in nanometer-scale. CV results showed that the Au-Pt@PPy with coral-like structure had high catalytic efficiency for methanol oxidation.
通过简便的一锅法反应合成了具有新颖三维结构的 Au-Pt@PPy（聚吡咯）。拉曼光谱、透射电子显微镜 (TEM)、扫描电子显微镜 (SEM)、紫外可见光谱 (UV-vis) 和循环伏安法 (CV) 用于表征该配合物。TEM 和 SEM 结果表明，产物具有新颖的三维 (3D) 多分支结构，通过简单调整添加的 HAuCl4 与 H2PtCl6 的比例即可控制。拉曼表征证明，产物具有显著的表面增强拉曼效应，得益于增强电磁场的长程效应和纳米级的粗糙度。CV 结果表明，具有珊瑚状结构的 Au-Pt@PPy 对甲醇氧化具有高催化效率。
