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September 10, 2025Journal of the American Chemical Society

Spin-State Tuning in PrFeO3-δ Perovskite for High-Temperature Oxygen Evolution Reaction

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Authors

JYJingrong YuQLQingxue LiuSWShuo Wang

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Overview

Study demonstrates enhanced electrocatalytic activity in perovskite via spin-state transition, indicating its importance for solid oxide electrolysis cells.

Key Points

  • Enhanced electrocatalytic activity achieved with A-site doped Pr0.5Ba0.5FeO3-δ, reaching 3.33 A cm-2 at 800 °C.
  • X-ray absorption and magnetic susceptibility analyses show a significant spin-state transition from high-spin Fe3+ to low-spin Fe4+.
  • Altered electron occupancy due to alkaline earth metal doping leads to improved charge transfer in the oxygen evolution reaction.
  • This research emphasizes the significance of the Fe electronic structure in optimizing perovskite materials for energy applications.

Cite This Study

Yu et al. (2025) studied this question.

synapsesocial.com/papers/68c1d5e554b1d3bfb60f88c3https://doi.org/10.1021/jacs.5c10937
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