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September 27, 2025Journal of the American Ceramic Society

Ca‐rich‐surface core‐shell spherical LaCoxFe1‐xO3 perovskite: Enhanced lattice oxygen mechanism in oxygen evolution

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Authors

YLYadong LiuUniversity of Science and Technology BeijingYWYong WangNational University of Defense TechnologyYQYunpu QinAdvanced Materials and Technologies (Slovenia)

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Overview

Synthesis of Ca-rich LaCaCoFe perovskite catalyst improved oxygen vacancies, suggesting superior OER performance.

Key Points

  • The spherical LaCaCoFe perovskite oxide achieved an overpotential of 320 mV, showcasing high activity for oxygen evolution.
  • Density functional theory reveals that Ca-doping promotes oxygen vacancy formation, enhancing OER kinetics significantly.
  • With a low Tafel slope of 63.1 mV/dec, the catalyst demonstrates remarkable efficiency and stability in OER applications.
  • The catalyst exhibited long-term stability, performing effectively for over 150 hours in oxygen evolution reactions.

Cite This Study

Liu et al. (2025) studied this question.

synapsesocial.com/papers/68d7be62eebfec0fc5237a94https://doi.org/10.1111/jace.70253
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