• 文献标题:   Adsorption of HOOO. radical on pristine and doped graphene-a first-principles study
  • 文献类型:   Article
  • 作  者:   LASKAR BI, SHUKLA PK
  • 作者关键词:   graphene, doped graphene, hooo, radical, free radical, antioxidant, radical scavenger
  • 出版物名称:   STRUCTURAL CHEMISTRY
  • ISSN:   1040-0400 EI 1572-9001
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1007/s11224-020-01702-w EA JAN 2021
  • 出版年:   2021

▎ 摘  要

It is believed that HOOO. radicals play a key role in atmospheric and environmental chemistry as well as in biological oxidation reactions. In the present contribution, we aim to understand the ability of graphene to scavenge HOOO. radicals by studying the adsorption of HOOO. radical on the pristine and doped (B-doped, N-doped and (B,N)-codoped) graphene using density functional theory (DFT) calculations. It is found that mechanisms of adsorption of HOOO. radical on the pristine and N-doped graphene involve physisorption whereas those on the B-doped and (B,N)-codoped graphene involve chemisorption. The interaction between the pristine graphene and HOOO. radical is found to be weaker than that between doped graphene and HOOO. radical. Our calculations demonstrate that both the pristine and doped-graphene studied here can scavenge the HOOO. radicals. However, the B- and N-doped graphene can do this job more effectively.