Precisely designing asymmetrical selenium-based dual-atom sites for efficient oxygen reduction

Owing to their synergistic interactions, dual-atom catalysts (DACs) with well-defined active sites are attracting increasing attention. However, more experimental research and theoretical investigations are needed to further construct explicit dual-atom sites and understand the synergy that facilitates multistep catalytic reactions. Herein, we precisely design a series of asymmetric selenium-based dual-atom catalysts that comprise heteronuclear SeN2–MN2 (M = Fe, Mn, Co, Ni, Cu, Mo, etc.) active sites for the efficient oxygen reduction reaction (ORR). Spectroscopic characterisation and theoretical calculations revealed that heteronuclear selenium atoms can efficiently polarise the charge distribution of other…

• SS
  Salt Science Research Foundation

  Award: BL14W1
• NN
  National Natural Science Foundation of China

  Awards: BL1W1B, 22103047, 22201262, U22A20143, 22375019, 22201262, 22375019, U22A20143
• CP
  China Postdoctoral Science Foundation

  Award: 2021M701864
• TU
  Tsinghua University
• ZU
  Zhengzhou University
• BI
  Beijing Institute of Technology

  Award: 2022CX01011
• BS
  Beijing Synchrotron Radiation Facility

  Award: BL14W1