Ferromagnetic Fe-TiO2 spin catalysts for enhanced ammonia electrosynthesis

Abstract Magnetic field effects (MFE) of ferromagnetic spin electrocatalysts have attracted significant attention due to their potential to enhance catalytic activity under an external magnetic field. However, no ferromagnetic spin catalysts have demonstrated MFE in the electrocatalytic reduction of nitrate for ammonia (NO 3 RR), a pioneering approach towards NH 3 production involving the conversion from diamagnetic NO 3 − to paramagnetic NO. Here, we report the ferromagnetic Fe-TiO 2 to investigate MFE on NO 3 RR. Fe-TiO 2 possesses a high density of atomically dispersed Fe sites and exhibits an intermediate-spin state, resulting in magnetic ordering through ferromagnetism. Assisted by a magnetic field,…

• SS
  Salt Science Research Foundation

  Awards: BL14W1, BL11B
• CA
  Chinese Academy of Sciences
• NS
  National Synchrotron Radiation Laboratory

  Award: BL01B
• IO
  Institute of Chemistry, Chinese Academy of Sciences
• BS
  Beijing Synchrotron Radiation Facility

  Award: BL14W1
• SA
  Shanghai Advanced Research Institute, Chinese Academy of Sciences