中文摘要：

采用微波多元醇法合成了Pt/C、Pt-M（Fe、Co、Ni）/C电催化剂,通过X-射线衍射仪（XRD）和透射电镜（TEM）测试手段对催化剂的微观结构、表面形貌等物理性能进行表征,并对其电化学性能进行了比较。测试结果表明：催化剂均高度分散在Vulcan XC-72碳载体上,Pt/C、Pt-Fe/C、Pt-Ni/C和Pt-Co/C电催化剂的平均粒径分别为：3.4、2.6、2.8、3.1 nm。在室温28℃下测得的电化学性能结果表明：合成催化剂在甲醇中的氧化活性高低顺序为：Pt-Fe/C〉Pt-Co/C〉Pt-Ni/C〉Pt/C,催化剂电催化性的稳定性高低顺序为：Pt-Ni/C〉Pt-Co/C〉Pt-Fe/C〉Pt/C,合成的Pt-M/C电催化剂催化性能均比Pt/C催化剂高,掺入合金Fe、Co和Ni后的Pt-M/C催化剂均具有较好的抗CO中毒的能力。

英文摘要：

Pt/C, Pt-M（Fe, Co, Ni）/C catalysts were prepared by intermittent microwave- assistant polyol process, and their microstructure and surface morphology were characterized by transmission electron microscopy （TEM） and X-ray diffraction （XRD）. The results show that the catalysts are highly dispersed on the Vulcan XC-72 carbon support, and the average particles size of Pt, Pt-Fe, Pt-Co and Pt-Ni nanoparticles are 3.4, 2.6, 2.8 nm and 3.1 nm respectively. The electrocatalytic performance of the samples were evaluated by cyclic voltammograms （CV） and polarization currents-time at 2 mol/L CH3OH/H2SO4 solutions and 28 ~C .The results show that the current and stability of electro-oxidation in methanol are Pt-Fe/C〉Pt-Co/C〉Pt-Ni/C〉Pt/C and Pt-Ni/C〉Pt-Co/C〉Pt-Fe/C〉Pt/C, and Pt-M/C catalysts have the larger electrochemical surface and preferable tolerance on CO than Pt/C.