石墨烯负载尖晶石CoFe_(2)O_(4)氧还原催化剂的制备及性能研究  

Synthesis and Properties of Spinel CoFe_(2)O_(4)Supported on Graphene Catalysts for Oxygen Reduction Reaction

作　　者：张廷尉 赵臻 刁全平 罗维巍 ZHANG Tingwei;ZHAO Zhen;DIAO Quanping;LUO Weiwei(School of Chemistry and Life Science,Anshan Normal University,Anshan Liaoning 114007,China)

机构地区：[1]鞍山师范学院化学与生命科学学院,辽宁鞍山114007

出　　处：《鞍山师范学院学报》2024年第4期27-30,共4页Journal of Anshan Normal University

基　　金：辽宁省博士科研启动基金计划项目(2022-BS-346);鞍山师范学院校级科研项目(22KYXM044)。

摘　　要：采用水热反应制备石墨烯负载尖晶石CoFe_(2)O_(4)催化剂.电化学测试结果表明,CoFe_(2)O_(4)-G#400催化剂具有良好的催化氧还原性能,半波电位为-0.117 V,当电位为-0.5 V时,电子转移数为3.96.混合价态的尖晶石CoFe_(2)O_(4)具有较高的催化活性,石墨烯作为载体能够提高催化剂的导电性和比表面积,从而提高催化剂的催化氧还原性能.Spinel CoFe_(2)O_(4)supported on graphene catalyst is prepared by hydrothermal reaction.The electro-chemical tests show that CoFe_(2)O_(4)-G#400 catalysts possess excellent catalytic ORR performance.The half-wave potential is-0.117 V and the electron transfer number is 3.96.Spinel CoFe_(2)O_(4)with mixed-valence has high catalytic activity.Graphene as the support can improve electron conductivity and specific surface area of the catalyst,which is beneficial to enhance catalytic oxygen reduction performance.

关 键 词：石墨烯 尖晶石 氧还原催化剂 性能 

分 类 号：O646[理学—物理化学]