Zr doped BaFeO3-δ as a robust electrode for symmetrical solid oxide fuel cells

Wei He; Jingchen Fan; Heng Zhang; Meina Chen; Zhengming Sun; Meng Ni

doi:10.1016/j.ijhydene.2019.10.091

Zr doped BaFeO_3-δ as a robust electrode for symmetrical solid oxide fuel cells

Wei He, Jingchen Fan, Heng Zhang, Meina Chen, Zhengming Sun, Meng Ni

Research output: Journal article publication › Journal article › Academic research › peer-review

36 Citations (Scopus)

Abstract

A BaFe_0.9Zr_0.1O_3-δ (BFZ) is successfully synthesized and its characteristics are investigated. The oxide exhibits high stability and a cubic perovskite structure in a reducing atmosphere. A La_0.9Sr_0.1Ga_0.8Mg_0.2O_3-δ (LSGM) supported symmetrical solid oxide fuel cell (SOFC) with BFZ electrode demonstrates a maximum power density of 1097 mW cm⁻² using humidified H₂ as the fuel and ambient air as the oxidant at 800 °C. And as low as 0.190 Ω cm² of polarization resistance of single cell is observed at 650 °C. Moreover, the electrode demonstrates high stability in 100 h test, as well as redox stability in both oxidizing and reducing atmospheres. The high electrochemical property and good stability suggest that the BFZ is promising candidate for symmetrical SOFC electrode.

Original language	English
Pages (from-to)	32164-32169
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	44
Issue number	60
DOIs	https://doi.org/10.1016/j.ijhydene.2019.10.091
Publication status	Published - 6 Dec 2019

Keywords

Electrode
High performance
Stability
Symmetrical solid oxide fuel cells

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

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

More information

10.1016/j.ijhydene.2019.10.091

http://hdl.handle.net/10397/103281

Cite this

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title = "Zr doped BaFeO3-δ as a robust electrode for symmetrical solid oxide fuel cells",

abstract = "A BaFe0.9Zr0.1O3-δ (BFZ) is successfully synthesized and its characteristics are investigated. The oxide exhibits high stability and a cubic perovskite structure in a reducing atmosphere. A La0.9Sr0.1Ga0.8Mg0.2O3-δ (LSGM) supported symmetrical solid oxide fuel cell (SOFC) with BFZ electrode demonstrates a maximum power density of 1097 mW cm−2 using humidified H2 as the fuel and ambient air as the oxidant at 800 °C. And as low as 0.190 Ω cm2 of polarization resistance of single cell is observed at 650 °C. Moreover, the electrode demonstrates high stability in 100 h test, as well as redox stability in both oxidizing and reducing atmospheres. The high electrochemical property and good stability suggest that the BFZ is promising candidate for symmetrical SOFC electrode.",

keywords = "Electrode, High performance, Stability, Symmetrical solid oxide fuel cells",

author = "Wei He and Jingchen Fan and Heng Zhang and Meina Chen and Zhengming Sun and Meng Ni",

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T1 - Zr doped BaFeO3-δ as a robust electrode for symmetrical solid oxide fuel cells

AU - He, Wei

AU - Fan, Jingchen

AU - Zhang, Heng

AU - Chen, Meina

AU - Sun, Zhengming

AU - Ni, Meng

PY - 2019/12/6

Y1 - 2019/12/6

N2 - A BaFe0.9Zr0.1O3-δ (BFZ) is successfully synthesized and its characteristics are investigated. The oxide exhibits high stability and a cubic perovskite structure in a reducing atmosphere. A La0.9Sr0.1Ga0.8Mg0.2O3-δ (LSGM) supported symmetrical solid oxide fuel cell (SOFC) with BFZ electrode demonstrates a maximum power density of 1097 mW cm−2 using humidified H2 as the fuel and ambient air as the oxidant at 800 °C. And as low as 0.190 Ω cm2 of polarization resistance of single cell is observed at 650 °C. Moreover, the electrode demonstrates high stability in 100 h test, as well as redox stability in both oxidizing and reducing atmospheres. The high electrochemical property and good stability suggest that the BFZ is promising candidate for symmetrical SOFC electrode.

AB - A BaFe0.9Zr0.1O3-δ (BFZ) is successfully synthesized and its characteristics are investigated. The oxide exhibits high stability and a cubic perovskite structure in a reducing atmosphere. A La0.9Sr0.1Ga0.8Mg0.2O3-δ (LSGM) supported symmetrical solid oxide fuel cell (SOFC) with BFZ electrode demonstrates a maximum power density of 1097 mW cm−2 using humidified H2 as the fuel and ambient air as the oxidant at 800 °C. And as low as 0.190 Ω cm2 of polarization resistance of single cell is observed at 650 °C. Moreover, the electrode demonstrates high stability in 100 h test, as well as redox stability in both oxidizing and reducing atmospheres. The high electrochemical property and good stability suggest that the BFZ is promising candidate for symmetrical SOFC electrode.

KW - Electrode

KW - High performance

KW - Stability

KW - Symmetrical solid oxide fuel cells

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