Hydrothermal synthesis of Pt-Ru/MWCNTs and its electrocatalytic properties for oxidation of methanol

作者：Sun Jingyu^*; Huang Jianshu; Cao Yanxia; Zhang Xiaogang

来源：International Journal of Electrochemical Science, 2007, 2(1): 64-71.

• Pt-Ru/MWCNTs electrocatalyst
• methanol electro-oxidation
• hydrothermal method

Pt-Ru nanoparticles supported on multiwalled carbon nanotube (MWCNTs) were synthesized by hydrothermal method. The catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). Pt-Ru nanoparticles uniformly dispersed on MWCNTs with the mean diameter of about 3.5 nm. The electro-catalytic oxidation of methanol was studied by cyclic voltammetry, chronoamperometry and impedance spectroscopy in 0.5 M H2SO4 solution containing 1.0 M CH3OH. The results showed that the Pt-Ru/MWCNTs catalysts as prepared had higher electrocatalytic activities for methanol oxidation than that of Pt-Ru/MWCNTs synthesized by microwave heating method.

• 出版日期2007-1
• 单位新疆大学; 南京航空航天大学; 中国科学院长春应用化学研究所; 郑州大学