Abstract: To obtain cathode electrocatalysts for the oxygen reduction in proton exchange membrane（PEM）fuel cell，iron and cobalt tetramethoxyphenylporphyrins adsorbed on pretreated carbons,including black pearls 2000（BP）and Vulcan XC-72（Vulcan）respectively by depositing MnO_x were investigated in detail.The effects of different central metal ions，carbon supports，pretreatment methods and various heat-treatment temperatures were compared.The catalysts were evaluated by RDE in 0.5 mol·L^-1 H₂SO₄.The best results were obtained for CoTMPP on BP pretreated by H₂O₂.The most active and stable catalysts were obtained by calcining at a high temperature（900℃）.After heat-treatment at 900℃，Co—N₄ bond structure in CoTMPP catalyst was no longer detected which meant that the central structure of the catalyst was changed during heat-treatment.Trying to deposit MnO_x in carbons did not achieve the expected result in acid medium.

摘要： 合成了四甲氧基苯基钴卟啉（CoTMPP）和四甲氧基苯基铁卟啉（FeTMPP）配合物，分别负载于经过双氧水和硝酸预处理且掺杂了MnO_x的炭载体，用于质子交换膜燃料电池阴极氧还原反应电催化剂.讨论了不同中心金属离子、不同载体、不同预处理方法和不同焙烧温度对催化剂催化活性的影响.通过旋转圆盘电极技术（RDE）和紫外可见光谱（UV-vis）测试，利用循环伏安曲线（CV）和Koutevky-Levich关系式评价了电催化剂对氧还原反应的电催化性能.研究表明，CoTMPP负载于双氧水处理过的炭载体BP 2000上活性最好，焙烧的最佳温度是900℃，同时发现在载体中掺杂MnO_x并没有达到预期效果.