• 文献标题:   Oxygen reduction reaction on active sites of heteroatom-doped graphene
  • 文献类型:   Article
  • 作  者:   FAN XF, ZHENG WT, KUO JL
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Jilin Univ
  • 被引频次:   42
  • DOI:   10.1039/c3ra23016c
  • 出版年:   2013

▎ 摘  要

With first-principle DFT calculations, the catalytic activity of heteroatom-doped carbon nanostructures in oxygen reduction reaction is investigated by exploring the active site of B-doped, N-doped and (B, N)-codoped and analyzing the kinetic pathways of oxygen reduction with the participation of protons. It is found that the heteroatom-doped graphene can become the effective catalysis materials for ORR with four-electron pathway. Especially, the formation of epoxide groups may be important for the four-electron processes on B-doped and (B, N)-codoped graphene. By the analysis of charge redistribution, the formation of active catalytic sites is attributed to the localized positive charge and electronic dipole induced by the dopant.