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Enhanced electrochemical performance of Ruddlesden-popper Sr3-xPrxFe2O7-δ cathodes for protonic ceramic fuel cells
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DOI：10.1016/j.cplett.2026.142822.png)
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Abstract
En 中文
• Rp of the symmetrical SP02F|BZCY|SP02F cell achieved to 0.079 Ω·cm−2 at 750 °C. • Pr-doping increases the oxygen vacancy concentration and Fe3+/Fe4+ redox couple. • DRT shows that the rate-limiting steps of ORR are charge transfer and ion transport processes.
Keywords:
Ruddlesden-Popper
Pr-doping
oxygen vacancy
Fe3+/Fe4+ redox couple
protonic ceramic fuel cells
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3.1
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