Effect of Phosphorus Modulation in Iron Single‐Atom Catalysts for Peroxidase Mimicking

Abstract Fe–N–C single‐atom catalysts (SACs) exhibit excellent peroxidase (POD)‐like catalytic activity, owing to their well‐defined isolated iron active sites on the carbon substrate, which effectively mimic the structure of natural peroxidase's active center. To further meet the requirements of diverse biosensing applications, SAC POD‐like activity still needs to be continuously enhanced. Herein, a phosphorus (P) heteroatom is introduced to boost the POD‐like activity of Fe–N–C SACs. A 1D carbon nanowire (FeNCP/NW) catalyst with enriched Fe–N 4 active sites is designed and synthesized, and P atoms are doped in the carbon matrix to affect the Fe center through long‐range interaction. The experimental results…

• NS
  National Science Foundation

  Awards: CHE-1955786, CBET‐1949870, CBET-1949870, 1949870, 2031494, CHE‐1955786, DE-AC02-06CH11357, CBET‐2031494, 1955786, DGE1255832, CBET-2031494
• UD
  U.S. Department of Energy

  Awards: AC02-06CH11357, DE‐AC02‐06CH11357, DE-AC02, 06CH11357, DGE1255832, DE-AC02-06CH11357, DE-AC02-
• WS
  Washington State University

  Award: DE-AC02-06CH11357
• OO
  Office of Science

  Awards: DE-AC02-06CH11357, DE-AC02, 06CH11357, AC02-06CH11357
• UO
  University of California, Irvine
• DO
  Division of Chemical, Bioengineering, Environmental, and Transport Systems

  Awards: CBET-2031494, CBET-1949870, 2031494
• DO
  Division of Chemistry

  Awards: 1955786, CHE-1955786
• BA
  Biological and Environmental Research

  Award: DE-AC02-06CH11357
• AN
  Argonne National Laboratory

  Awards: DE-AC02, 06CH11357, AC02-06CH11357