A highly stable co-doping induced phase structural transformation Sr-free oxygen electrode for reversible solid oxide cells

Xu Han; Qi Shao; Xiuyang Qian; Zhengpeng Chen; Yuan Gao; Xuemei Ou; Kun Zheng; Zhe Lv; Yihan Ling

doi:10.1016/j.susmat.2025.e01240

A highly stable co-doping induced phase structural transformation Sr-free oxygen electrode for reversible solid oxide cells

Xu Han
, Qi Shao
, Xiuyang Qian
, Zhengpeng Chen
, Yuan Gao
, Xuemei Ou
, Kun Zheng
, Zhe Lv^*
, Yihan Ling

^*Corresponding author for this work

China University of Mining and Technology
School of Physics, Harbin Institute of Technology
Heilongjiang Provincial Key Laboratory of Advanced Quantum Functional Materials and Sensor Devices
Guangdong Energy Group Science and Technology Research Institute Co. Ltd
AGH University of Krakow

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

(La,Sr)MnO_3+δ (LSM)-based perovskite oxides have attracted great attention as oxygen electrodes for reversible solid oxide cells (RSOCs) owing to excellent comprehensive properties. Herein, we reported a Sr-free LaMn_0.6Co_0.2Cu_0.2O_3-δ (LMCC622) oxide without the side effects of Sr-containing oxygen electrodes and then characterized the electrochemical performance. The coupling of multiple Mn-site transition metal cations in LaMnO_3+δ can result in the phase transition from the hexagonal perovskite to the orthorhombic perovskite. The increased thermal reduction of Mn ions in operation temperature releases large amounts of lattice oxygen, dramatically enhancing the catalytic activity of the oxygen electrode. Prepared anode-supported single cells with LMCC622 oxygen electrode exhibited high electrochemical performance (851.12 mW cm⁻² at 800 °C), which is higher than that of La_0.8Sr_0.2MnO_3-δ oxygen electrode (682.18 mW cm⁻² at 800 °C). The further composite Gd_0.1Ce_0.9O_1.95 (GDC) to LMCC622-GDC as oxygen electrode achieves excellent performance (1211.10 mW cm⁻² at 800 °C) and stable cyclable operation of over 100 h in fuel cell and electrolysis cell mode.

Original language	English
Article number	e01240
Journal	Sustainable Materials and Technologies
Volume	43
DOIs	https://doi.org/10.1016/j.susmat.2025.e01240
State	Published - Apr 2025
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Electrochemical performance
Phase transition
Reversible solid oxide cells
Sr-free oxygen electrode

Access to Document

10.1016/j.susmat.2025.e01240

Cite this

@article{71390b77bce642d5a530cdbc2d7fd471,

title = "A highly stable co-doping induced phase structural transformation Sr-free oxygen electrode for reversible solid oxide cells",

abstract = "(La,Sr)MnO3+δ (LSM)-based perovskite oxides have attracted great attention as oxygen electrodes for reversible solid oxide cells (RSOCs) owing to excellent comprehensive properties. Herein, we reported a Sr-free LaMn0.6Co0.2Cu0.2O3-δ (LMCC622) oxide without the side effects of Sr-containing oxygen electrodes and then characterized the electrochemical performance. The coupling of multiple Mn-site transition metal cations in LaMnO3+δ can result in the phase transition from the hexagonal perovskite to the orthorhombic perovskite. The increased thermal reduction of Mn ions in operation temperature releases large amounts of lattice oxygen, dramatically enhancing the catalytic activity of the oxygen electrode. Prepared anode-supported single cells with LMCC622 oxygen electrode exhibited high electrochemical performance (851.12 mW cm−2 at 800 °C), which is higher than that of La0.8Sr0.2MnO3-δ oxygen electrode (682.18 mW cm−2 at 800 °C). The further composite Gd0.1Ce0.9O1.95 (GDC) to LMCC622-GDC as oxygen electrode achieves excellent performance (1211.10 mW cm−2 at 800 °C) and stable cyclable operation of over 100 h in fuel cell and electrolysis cell mode.",

keywords = "Electrochemical performance, Phase transition, Reversible solid oxide cells, Sr-free oxygen electrode",

author = "Xu Han and Qi Shao and Xiuyang Qian and Zhengpeng Chen and Yuan Gao and Xuemei Ou and Kun Zheng and Zhe Lv and Yihan Ling",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier B.V.",

year = "2025",

month = apr,

doi = "10.1016/j.susmat.2025.e01240",

language = "英语",

volume = "43",

journal = "Sustainable Materials and Technologies",

issn = "2214-9929",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A highly stable co-doping induced phase structural transformation Sr-free oxygen electrode for reversible solid oxide cells

AU - Han, Xu

AU - Shao, Qi

AU - Qian, Xiuyang

AU - Chen, Zhengpeng

AU - Gao, Yuan

AU - Ou, Xuemei

AU - Zheng, Kun

AU - Lv, Zhe

AU - Ling, Yihan

PY - 2025/4

Y1 - 2025/4

N2 - (La,Sr)MnO3+δ (LSM)-based perovskite oxides have attracted great attention as oxygen electrodes for reversible solid oxide cells (RSOCs) owing to excellent comprehensive properties. Herein, we reported a Sr-free LaMn0.6Co0.2Cu0.2O3-δ (LMCC622) oxide without the side effects of Sr-containing oxygen electrodes and then characterized the electrochemical performance. The coupling of multiple Mn-site transition metal cations in LaMnO3+δ can result in the phase transition from the hexagonal perovskite to the orthorhombic perovskite. The increased thermal reduction of Mn ions in operation temperature releases large amounts of lattice oxygen, dramatically enhancing the catalytic activity of the oxygen electrode. Prepared anode-supported single cells with LMCC622 oxygen electrode exhibited high electrochemical performance (851.12 mW cm−2 at 800 °C), which is higher than that of La0.8Sr0.2MnO3-δ oxygen electrode (682.18 mW cm−2 at 800 °C). The further composite Gd0.1Ce0.9O1.95 (GDC) to LMCC622-GDC as oxygen electrode achieves excellent performance (1211.10 mW cm−2 at 800 °C) and stable cyclable operation of over 100 h in fuel cell and electrolysis cell mode.

AB - (La,Sr)MnO3+δ (LSM)-based perovskite oxides have attracted great attention as oxygen electrodes for reversible solid oxide cells (RSOCs) owing to excellent comprehensive properties. Herein, we reported a Sr-free LaMn0.6Co0.2Cu0.2O3-δ (LMCC622) oxide without the side effects of Sr-containing oxygen electrodes and then characterized the electrochemical performance. The coupling of multiple Mn-site transition metal cations in LaMnO3+δ can result in the phase transition from the hexagonal perovskite to the orthorhombic perovskite. The increased thermal reduction of Mn ions in operation temperature releases large amounts of lattice oxygen, dramatically enhancing the catalytic activity of the oxygen electrode. Prepared anode-supported single cells with LMCC622 oxygen electrode exhibited high electrochemical performance (851.12 mW cm−2 at 800 °C), which is higher than that of La0.8Sr0.2MnO3-δ oxygen electrode (682.18 mW cm−2 at 800 °C). The further composite Gd0.1Ce0.9O1.95 (GDC) to LMCC622-GDC as oxygen electrode achieves excellent performance (1211.10 mW cm−2 at 800 °C) and stable cyclable operation of over 100 h in fuel cell and electrolysis cell mode.

KW - Electrochemical performance

KW - Phase transition

KW - Reversible solid oxide cells

KW - Sr-free oxygen electrode

UR - https://www.scopus.com/pages/publications/85214299365

U2 - 10.1016/j.susmat.2025.e01240

DO - 10.1016/j.susmat.2025.e01240

M3 - 文章

AN - SCOPUS:85214299365

SN - 2214-9929

VL - 43

JO - Sustainable Materials and Technologies

JF - Sustainable Materials and Technologies

M1 - e01240

ER -

A highly stable co-doping induced phase structural transformation Sr-free oxygen electrode for reversible solid oxide cells

Abstract

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Keywords

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