• 文献标题:   Heterojunctions of silver-iron oxide on graphene for laser-coupled oxygen reduction reactions
  • 文献类型:   Article
  • 作  者:   CHEN WQ, CHUNG MC, VALINTON JAA, PENALOZA DP, CHUANG SH, CHEN CH
  • 作者关键词:  
  • 出版物名称:   CHEMICAL COMMUNICATIONS
  • ISSN:   1359-7345 EI 1364-548X
  • 通讯作者地址:   Natl Sun Yat Sen Univ
  • 被引频次:   7
  • DOI:   10.1039/c8cc03136c
  • 出版年:   2018

▎ 摘  要

We report a two-step hybridization of N-doped graphene and Ag-decorated Fe2O3 hematite to realize a balanced oxygen adsorption/desorption equilibrium and a laser-coupled ORR (LORR). The stable plateau currents with n values of 3.9 in a wide potential range (0.2-0.7 V) and 7.5% peroxide inhibition of the LORR are found to be directly associated with the Ag/Fe2O3 heterojunction, where interactions of semiconductor band gap excitation and plasmonic resonance-induced hot electrons are proposed to occur.