A macroporous carbon nanoframe for hosting Mott–Schottky Fe–Co/Mo₂C sites as an outstanding bi-functional oxygen electrocatalyst

Abstract

Simultaneously optimizing the d-band center of the catalyst and the mass/charge transport processes during the oxygen catalytic reaction is an essential but arduous task in the pursuit of creating effective...

Linking atomic to mesoscopic scales in multilevel structural tailoring of single-atom catalysts for peroxide activation

“…20,21 Microscopic pores and defects in SACs provide a confinement effect that stabilizes metal sites and prevents the spatial migration and agglomeration of metal atoms, 22,23 while the mesoscale structure features multiple cavities or regions that efficiently direct reactants to the active sites. 24,25 The three-dimensional (3D) porous carbon support of Fe SACs is expected to play a role similar to the 3D amino acid structure of enzymes for peroxidase-like catalysis. 13 A 3D FeN 4 structure has been demonstrated to emulate natural enzymes' distal heme pocket residues, which is different from the conventional 2D FeN 4 structure.…”