石墨烯负载尖晶石CoFe2O4氧还原催化剂的制备及性能研究
Synthesis and Properties of Spinel CoFe2O4 Supported on Graphene Catalysts for Oxygen Reduction Reaction
张廷尉 1赵臻 1刁全平 1罗维巍1
作者信息
- 1. 鞍山师范学院 化学与生命科学学院,辽宁 鞍山 114007
- 折叠
摘要
采用水热反应制备石墨烯负载尖晶石CoFe2O4 催化剂.电化学测试结果表明,CoFe2O4-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CoFe2O4 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.
Abstract
Spinel CoFe2O4 supported on graphene catalyst is prepared by hydrothermal reaction.The electro-chemical tests show that CoFe2O4-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 CoFe2O4 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Key words
Graphene/Spinel/Oxygen reduction catalyst/Performance引用本文复制引用
基金项目
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)
出版年
2024
NETL
NSTL
万方数据