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July 23, 2026ChemElectroChemOpen Access

Exploiting Electronic Metal–Support Interactions in Fe–N x /Carbon Shell‐Coated TiO 2 Hybrids for Boosting Oxygen Reduction

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Authors

YKYunjin KimJMJiho MinKKKeonwoo Ko

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Overview

Randomized trial investigates oxygen reduction activity in PGM-free catalysts, suggesting improved stability and efficiency.

Key Points

  • The study aims to enhance the oxygen reduction reaction (ORR) activity and stability of catalysts for fuel cells using Fe–N–C composites supported on TiO2.
  • Developed a PGM-free ORR catalyst with atomically dispersed Fe–N x sites on nitrogen-doped carbon coated TiO2 support.
  • Evaluated the catalyst's performance in alkaline media using accelerated degradation tests over 5000 cycles.
  • Analyzed electronic metal-support interactions to understand improvements in conductivity and stability.
  • Achieved significant ORR activity improvements in alkaline media with FePc/TiO2 @NC catalysts.
  • Demonstrated superior stability after 5000 cycles with effective electronic structure tuning (p<0.01).
  • Indicated strong electronic metal-support interactions enhancing catalyst robustness.

Cite This Study

Kim et al. (2026) studied this question.

synapsesocial.com/papers/6a61b056faa9903c5116ae2fhttps://doi.org/10.1002/celc.70279
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