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利用表面活性剂十二烷基磺酸钠(SDSN)的调控合成不同粒径的硒模板和铂纳米空球(Pthollow),并将其修饰于玻碳(GC)基底即可制得Pthollow/GC电极;采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HR-TEM)和X射线光电子能谱等观察表征了Pthollow样品的形貌与组成;以甲醇为探针分子,研究Pthollow/GC和电沉积铂电极(Ptnano/GC)对甲醇氧化的电催化活性.结果表明,由铂原子簇团构筑的多孔铂纳米空球粒径均匀,分散性好;用4μmol·L-1SDSN控制合成的直径为130 nm的Pthollow制备的Pthollow/GC电极对甲醇氧化的电催化活性最佳.
Pthollow / GC (Pthollow / GC) was prepared by the synthesis of Pthollow with different particle sizes by the control of surfactant sodium dodecyl sulfate (SDSN) The morphology and composition of the Pthollow samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HR-TEM) and X-ray photoelectron spectroscopy. Methanol was used as probe The electrocatalytic activity of Pthollow / GC and Ptnano / GC electrode for the methanol oxidation was investigated.The results showed that the porous platinum nanospheres constructed by platinum clusters had uniform particle size and good dispersibility, The Pthollow / Pthollow / GC electrode prepared by L-1SDSN with a diameter of 130 nm was the best electrocatalytic activity for methanol oxidation.