中文摘要：

合成了一系列石墨烯-金属四苯基卟啉（GR-MTPP）的复合材料,并将该复合材料作为电催化剂应用于氧气还原反应中。通过金属离子与四苯基卟啉发生配位反应得到金属四苯基卟啉（FeTPP、CoTPP、NiTPP、CuTPP、ZnTPP、MnTPP）,进一步通过π-π堆积作用合成了一系列新型的石墨烯-金属卟啉复合材料,并将其修饰到玻碳电极上,研究其催化氧气还原的反应。结果表明,该复合材料在DMF与水的混合溶剂中分散性能良好;石墨烯与金属卟啉的协同作用使其催化氧气还原性能更优;该类复合材料尤其是GR-FeTPP与GR-CoTPP在中性溶液中（pH=7.0）显示出良好的对氧气还原的电催化性能。GR-FeTPP催化氧气还原的电位在-0.24 V处,响应电流为85μA;GR-CoTPP催化氧气还原的电位在-0.19 V,响应电流为44μA。表明石墨烯-金属卟啉复合材料是氧气传感器良好的电催化剂。

英文摘要：

A series of graphene-metal-tetraphenylporphyrin（GR-MTPP） nanocomposite materials were prepared and applied in the oxygen reduction reaction as efficient electrocatalysts.MTPPs（FeTPP,CoTPP,NiTPP,CuTPP,ZnTPP and MnTPP） were synthesized via a coordination reaction between metal ions and TPP.Graphene-metal-tetraphenylporphyrin nanocomposition materials were successfully prepared by the π-π stacking interaction and applied in the electrocatalytic oxygen reduction reaction.The results showed that GR-MTPPs exhibited enhanced electrocatalytic activity toward oxygen reduction due to the synergistic effect between the graphene and MTTP.The large electro-active surface area and fast charge transfered of graphene facilitated the electrocatalytic oxygen reduction of MTPP.The GR-FeTPP showed the peak potential at-0.24 V with the current response of 85 μA for the eletrocatalytic reduction of oxygen.The GR-CoTPP showed the peak potential at-0.19 V with the current response of 44 μA for the eletrocatalytic reduction of oxygen.It is indicated that GR-MTPP nanocomposite materials are prominent electrocatalysts for oxygen sensors.