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.
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)
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)。
关键词
石墨烯
尖晶石
氧还原催化剂
性能
Graphene
Spinel
Oxygen reduction catalyst
Performance
