Synergistic metal-carbon interactions in Fe₃O₄/N-MWCNT composites for electro-Fenton processes.

ABSTRACT: This work investigates the performance of graphitic nitrogen-doped multi-walled carbon nanotubes (N-MWCNT) decorated with Fe₃O₄ nanoparticles for the oxygen reduction reaction (ORR) and their application in the degradation of methyl orange (MO) using a heterogeneous electro-Fenton process. The combination of Fe₃O₄ and N-MWCNT enhances electrocatalytic activity through electronic metal-carbon interactions (EMCI), which promote charge transfer and improve electron mobility. Advanced characterization techniques, including TGA, TEM, XRD, Raman, XPS, UV-Vis, and electrochemical analysis, confirm the synergistic effects of combining graphitic N-MWCNT and Fe₃O₄ during a coprecipitation synthesis. DPR analysis reveals that the Fe

SUBMITTER: Romero-Orellana LA 

PROVIDER: S-EPMC12645587 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature