A novel electrode with multifunction and regeneration for highly efficient and stable symmetrical solid oxide cell

Yunfeng Tian; Yun Liu; Lichao Jia; Aaron Naden; Jing Chen; Bo Chi; Jian Pu; John T.S. Irvine; Jian Li

doi:10.1016/j.jpowsour.2020.228620

A novel electrode with multifunction and regeneration for highly efficient and stable symmetrical solid oxide cell

Yunfeng Tian, Yun Liu, Lichao Jia, Aaron Naden, Jing Chen, Bo Chi^*, Jian Pu, John T.S. Irvine, Jian Li

^*Corresponding author for this work

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

Abstract

Symmetrical solid oxide cells (SSOCs) have been extensively recognized due to their simple cell configuration, low cost and reliability. High performance electrode is the key determinant of SSOCs. Herein, a multifunctional perovskite oxide La_0.6Ca_0.4Fe_0.8Ni_0.2O_3-δ (LCaFN) is investigated as electrode for SSOCs. The results confirm that LCaFN shows excellent oxygen reduction reaction (ORR), oxygen evolution reaction (OER), carbon dioxide reduction reaction (CO₂-RR) and hydrogen oxidation reaction (HOR) catalytic activity. In SOFC mode, the SSOCs with LCaFN achieve good electrochemical performance with maximum power density of 300 mW cm⁻² at 800 °C. For pure CO₂ electrolysis in SOEC mode, polarization resistance of 0.055 Ω cm² and current density of 1.5 A cm⁻² are achieved at 2.0 V at 800 °C. Besides, the cell shows excellent stability both in SOFC mode and SOEC mode. Most importantly, SSOCs with symmetrical LCaFN electrodes show robust and regenerative performance under anodic or cathodic process during the switching gas, showing the great reliability of the SSOCs. The results show that this novel electrode offers a promising strategy for operation of SSOCs.

Original language	English
Article number	228620
Journal	Journal of Power Sources
Volume	475
Early online date	16 Aug 2020
DOIs	https://doi.org/10.1016/j.jpowsour.2020.228620
Publication status	Published - 1 Nov 2020

Keywords

Electrochemical performance
Gas switching
LaCaFeNiO
Multifunctional catalyst
Symmetrical solid oxide cells

UN SDGs

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

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10.1016/j.jpowsour.2020.228620

Tian_2020_JPS_Novelelectrode_AAM
Copyright © 2020 Elsevier B.V. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.jpowsour.2020.228620
Accepted author manuscript, 1.94 MBLicence: CC BY-NC-ND

Cite this

@article{472d9ef5585d44f58a5712c8fd3d8367,

title = "A novel electrode with multifunction and regeneration for highly efficient and stable symmetrical solid oxide cell",

abstract = "Symmetrical solid oxide cells (SSOCs) have been extensively recognized due to their simple cell configuration, low cost and reliability. High performance electrode is the key determinant of SSOCs. Herein, a multifunctional perovskite oxide La0.6Ca0.4Fe0.8Ni0.2O3-δ (LCaFN) is investigated as electrode for SSOCs. The results confirm that LCaFN shows excellent oxygen reduction reaction (ORR), oxygen evolution reaction (OER), carbon dioxide reduction reaction (CO2-RR) and hydrogen oxidation reaction (HOR) catalytic activity. In SOFC mode, the SSOCs with LCaFN achieve good electrochemical performance with maximum power density of 300 mW cm−2 at 800 °C. For pure CO2 electrolysis in SOEC mode, polarization resistance of 0.055 Ω cm2 and current density of 1.5 A cm−2 are achieved at 2.0 V at 800 °C. Besides, the cell shows excellent stability both in SOFC mode and SOEC mode. Most importantly, SSOCs with symmetrical LCaFN electrodes show robust and regenerative performance under anodic or cathodic process during the switching gas, showing the great reliability of the SSOCs. The results show that this novel electrode offers a promising strategy for operation of SSOCs.",

keywords = "Electrochemical performance, Gas switching, LaCaFeNiO, Multifunctional catalyst, Symmetrical solid oxide cells",

author = "Yunfeng Tian and Yun Liu and Lichao Jia and Aaron Naden and Jing Chen and Bo Chi and Jian Pu and Irvine, {John T.S.} and Jian Li",

note = "Authors acknowledge financial support from National Key Research & Development Project (2016YFE0126900), National Natural Science Foundation of China (51672095, U1910209), and China Scholarship Council (201806160178). The work is also partially supported by State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology (P2019-004).",

year = "2020",

month = nov,

day = "1",

doi = "10.1016/j.jpowsour.2020.228620",

language = "English",

volume = "475",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier Science BV",

}

TY - JOUR

T1 - A novel electrode with multifunction and regeneration for highly efficient and stable symmetrical solid oxide cell

AU - Tian, Yunfeng

AU - Liu, Yun

AU - Jia, Lichao

AU - Naden, Aaron

AU - Chen, Jing

AU - Chi, Bo

AU - Pu, Jian

AU - Irvine, John T.S.

AU - Li, Jian

N1 - Authors acknowledge financial support from National Key Research & Development Project (2016YFE0126900), National Natural Science Foundation of China (51672095, U1910209), and China Scholarship Council (201806160178). The work is also partially supported by State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology (P2019-004).

PY - 2020/11/1

Y1 - 2020/11/1

N2 - Symmetrical solid oxide cells (SSOCs) have been extensively recognized due to their simple cell configuration, low cost and reliability. High performance electrode is the key determinant of SSOCs. Herein, a multifunctional perovskite oxide La0.6Ca0.4Fe0.8Ni0.2O3-δ (LCaFN) is investigated as electrode for SSOCs. The results confirm that LCaFN shows excellent oxygen reduction reaction (ORR), oxygen evolution reaction (OER), carbon dioxide reduction reaction (CO2-RR) and hydrogen oxidation reaction (HOR) catalytic activity. In SOFC mode, the SSOCs with LCaFN achieve good electrochemical performance with maximum power density of 300 mW cm−2 at 800 °C. For pure CO2 electrolysis in SOEC mode, polarization resistance of 0.055 Ω cm2 and current density of 1.5 A cm−2 are achieved at 2.0 V at 800 °C. Besides, the cell shows excellent stability both in SOFC mode and SOEC mode. Most importantly, SSOCs with symmetrical LCaFN electrodes show robust and regenerative performance under anodic or cathodic process during the switching gas, showing the great reliability of the SSOCs. The results show that this novel electrode offers a promising strategy for operation of SSOCs.

AB - Symmetrical solid oxide cells (SSOCs) have been extensively recognized due to their simple cell configuration, low cost and reliability. High performance electrode is the key determinant of SSOCs. Herein, a multifunctional perovskite oxide La0.6Ca0.4Fe0.8Ni0.2O3-δ (LCaFN) is investigated as electrode for SSOCs. The results confirm that LCaFN shows excellent oxygen reduction reaction (ORR), oxygen evolution reaction (OER), carbon dioxide reduction reaction (CO2-RR) and hydrogen oxidation reaction (HOR) catalytic activity. In SOFC mode, the SSOCs with LCaFN achieve good electrochemical performance with maximum power density of 300 mW cm−2 at 800 °C. For pure CO2 electrolysis in SOEC mode, polarization resistance of 0.055 Ω cm2 and current density of 1.5 A cm−2 are achieved at 2.0 V at 800 °C. Besides, the cell shows excellent stability both in SOFC mode and SOEC mode. Most importantly, SSOCs with symmetrical LCaFN electrodes show robust and regenerative performance under anodic or cathodic process during the switching gas, showing the great reliability of the SSOCs. The results show that this novel electrode offers a promising strategy for operation of SSOCs.

KW - Electrochemical performance

KW - Gas switching

KW - LaCaFeNiO

KW - Multifunctional catalyst

KW - Symmetrical solid oxide cells

UR - https://www.sciencedirect.com/science/article/pii/S0378775320309241?via%3Dihub#appsec1

U2 - 10.1016/j.jpowsour.2020.228620

DO - 10.1016/j.jpowsour.2020.228620

M3 - Article

AN - SCOPUS:85089363044

SN - 0378-7753

VL - 475

JO - Journal of Power Sources

JF - Journal of Power Sources

M1 - 228620

ER -

A novel electrode with multifunction and regeneration for highly efficient and stable symmetrical solid oxide cell

Abstract

Keywords

UN SDGs

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