TMN4 complex embedded graphene as bifunctional electrocatalysts for high efficiency OER/ORR

查看全文 作　　者：Zhe [1]Xue;Xinyu [1]Zhang;Jiaqian [2]Qin;Riping [1]Liu

机构地区：[1]State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China;[2]Metallurgy and Materials Science Research Institute,Chulalongkorn University,Bangkok 10330,Thailand

出　　处：《Journal of Energy Chemistry》索引2021年第30卷第4期,共7页

基　　金：supported by the National Science Foundation for Distinguished Young Scholars for Hebei Province of China(grant E2016203376);the Thailand Research Fund(RSA6080017);the Energy Conservation Promotion Fund and the Energy Conservation Promotion Fund Office,Ministry of Energy。 摘　　要：Developing highly active bifunctional electrocatalysts for oxygen evolution reaction(OER)and oxygen reduction reaction(ORR)is of great significance in energy conversion and storage technologies.In this study,we systematically investigated the OER/ORR electrocatalytic activity of TMN_(4)@G system by using density functional theory(DFT)calculations.Globally,IrN_(4)@G is a very promising bifunctional catalyst for both OER and ORR with the extremely low overpotentials of 0.30 and 0.26 V,respectively.Such outstanding electrocatalytic performance is mainly attributed to the synergistic effect of Ir and N.More importantly,by constructing 2D activity volcano plots,we obtained the limiting overpotentials of TMN_(4)@G system with the values of 0.26 V for OER and 0.24 V for ORR.These findings open up new opportunities for further exploring graphene-based materials for highly efficient OER/ORR electrocatalysts. 关键词：N-doped graphene Transition Metal-N4 cluster First-principles calculations Oxygen evolution reaction Oxygen reduction reaction

相关文献

参考文献（45）
引证文献（5）
耦合文献（0）

参考文献(45)

引证文献(5)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

TMN4 complex embedded graphene as bifunctional electrocatalysts for high efficiency OER/ORR

参考文献(45)

引证文献(5)

用户提示