Inhibiting Demetalation of Fe─N─C via Mn Sites for Efficient Oxygen Reduction Reaction in Zinc‐Air Batteries
Nanjing University of Aeronautics and Astronautics · Jiangnan University · +1 more institution
Abstract
Abstract Demetalation caused by the electrochemical dissolution of metallic Fe atoms is a major challenge for the practical application of Fe─N─C catalysts. Herein, an efficient single metallic Mn active site is constructed to improve the strength of the Fe─N bond, inhibiting the demetalation effect of Fe─N─C. Mn acts as an electron donor inducing more delocalized electrons to reduce the oxidation state of Fe by increasing the electron density, thereby enhancing the Fe─N bond and inhibiting the electrochemical dissolution of Fe. The oxygen reduction reaction pathway for the dissociation of Fe─Mn dual sites can overcome the high energy barriers to direct O─O bond dissociation and modulate the electronic states…
Citation impact
- FWCI
- 31.15
- Percentile
- 100%
- References
- 52
Authors
11Topics & keywords
- Oxygen reduction reaction
- Zinc
- Materials science
- Oxygen
- Oxygen reduction
- Reduction (mathematics)
- Inorganic chemistry
- Metallurgy