Sb2S3-templated synthesis of sulfur-doped Sb-N-C with hierarchical architecture and high metal loading for H2O2 electrosynthesis

Abstract Selective two-electron (2e − ) oxygen reduction reaction (ORR) offers great opportunities for hydrogen peroxide (H 2 O 2 ) electrosynthesis and its widespread employment depends on identifying cost-effective catalysts with high activity and selectivity. Main-group metal and nitrogen coordinated carbons (M-N-Cs) are promising but remain largely underexplored due to the low metal-atom density and the lack of understanding in the structure-property correlation. Here, we report using a nanoarchitectured Sb 2 S 3 template to synthesize high-density (10.32 wt%) antimony (Sb) single atoms on nitrogen- and sulfur-codoped carbon nanofibers (Sb-NSCF), which exhibits both high selectivity (97.2%) and mass…

• AN
  Australian Nuclear Science and Technology Organisation
• AS
  Australian Synchrotron
• NN
  National Natural Science Foundation of China

  Awards: 51902099, 22178072, 22209043, 92163116, No. 22178072
• HP
  Hunan Provincial Science and Technology Department

  Awards: 2020JJ4204, 2020JJ1001
• GU
  Guangxi University