The Regulation Mechanism of Oxygen Vacancies in Ruddlesden–Popper Perovskite Ln2NiO4 (Ln = La, Pr, Nd) Air Electrode for Reversible Protonic Solid Oxide Cells DOI
Kai Kang,

Xu Liu,

Chao Wang

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Abstract Reversible protonic solid oxide cells (R‐PSOCs) are promising green energy storage devices for efficient hydrogen/electricity conversion. Due to the complex environment of air electrode, microscopic influence mechanism oxygen vacancies in perovskites on reduction reaction (ORR) and evolution (OER) is unclear. In this study, layered Ruddlesden–Popper perovskite Ln 2 NiO 4 (Ln = La, Pr, Nd) electrodes constructed investigate effect water/oxygen coupling dual mode. The Pr 4+δ full cell exhibits highest peak power density 0.692 W cm −2 fuel mode a maximum current −1.2 A electrolysis at 700 °C. changes electrochemical impedance spectroscopy show that can absorb small amount interfacial water SOFC promote triple‐conductivity. Meanwhile, it have good electrolytic performance an atmosphere 10% H O SOEC enriched Pr₂NiO provide broad platform both ORR OER, while appropriate hydrophilicity achieve better balance state by competitive adsorption water/oxygen. These comprehensive characteristics make suitable be potential electrode material RSOCs.

Язык: Английский

A new efficient and anti-sintering perovskite oxide-based internal catalyst for tubular direct-ammonia protonic ceramic fuel cells DOI
Sheng Wei,

Meijuan Fei,

Wanqing Chen

и другие.

Journal of Power Sources, Год журнала: 2025, Номер 642, С. 237008 - 237008

Опубликована: Апрель 11, 2025

Язык: Английский

Процитировано

0
Modulating B-site atomic environment via Co-doping to meliorate La0.5Sr1.5MnO4 cathode electrocatalysis for protonic ceramic fuel cells DOI
Dawei Geng, Huan Feng, Lei Ma

и другие.

Progress in Natural Science Materials International, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
The Regulation Mechanism of Oxygen Vacancies in Ruddlesden–Popper Perovskite Ln2NiO4 (Ln = La, Pr, Nd) Air Electrode for Reversible Protonic Solid Oxide Cells DOI
Kai Kang,

Xu Liu,

Chao Wang

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Abstract Reversible protonic solid oxide cells (R‐PSOCs) are promising green energy storage devices for efficient hydrogen/electricity conversion. Due to the complex environment of air electrode, microscopic influence mechanism oxygen vacancies in perovskites on reduction reaction (ORR) and evolution (OER) is unclear. In this study, layered Ruddlesden–Popper perovskite Ln 2 NiO 4 (Ln = La, Pr, Nd) electrodes constructed investigate effect water/oxygen coupling dual mode. The Pr 4+δ full cell exhibits highest peak power density 0.692 W cm −2 fuel mode a maximum current −1.2 A electrolysis at 700 °C. changes electrochemical impedance spectroscopy show that can absorb small amount interfacial water SOFC promote triple‐conductivity. Meanwhile, it have good electrolytic performance an atmosphere 10% H O SOEC enriched Pr₂NiO provide broad platform both ORR OER, while appropriate hydrophilicity achieve better balance state by competitive adsorption water/oxygen. These comprehensive characteristics make suitable be potential electrode material RSOCs.

Язык: Английский

Процитировано

0