High-performance fluorine-doped cobalt-free oxide as a potential cathode material for solid oxide fuel cells

Huan Li; Zhe Lü

doi:10.1016/j.ijhydene.2020.10.074

High-performance fluorine-doped cobalt-free oxide as a potential cathode material for solid oxide fuel cells

Huan Li
, Zhe Lü^*

^*Corresponding author for this work

School of Physics, Harbin Institute of Technology

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

18 Scopus citations

Abstract

The potential utilization of the cobalt-free fluorine-doped LaBa_0.5Sr_0.5Fe₂O_5.875-δF_0.125 oxide as a solid oxide fuel cell (SOFC) cathode candidate is investigated and assessed. The polarization resistance of the LaBa_0.5Sr_0.5Fe₂O_5.875-δF_0.125 cathode is 0.089 Ω cm² at 750 °C, and meanwhile, a larger power density of the electrolyte-supported single cell with the LaBa_0.5Sr_0.5Fe₂O_5.875-δF_0.125 cathode is 511 mWcm⁻². In addition, the electrode still possesses a better stability after 120 h operation. Combining with the oxygen reduction kinetics research and the corresponding distribution of relaxation time analysis, rate-determining steps are further defined. Current research results indicate that the LaBa_0.5Sr_0.5Fe₂O_5.875-δF_0.125 sample is an attractive cathode for SOFCs.

Original language	English
Pages (from-to)	2503-2510
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	46
Issue number	2
DOIs	https://doi.org/10.1016/j.ijhydene.2020.10.074
State	Published - 6 Jan 2021
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Cathode
Doping
ORR
Perovskite

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10.1016/j.ijhydene.2020.10.074

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@article{292d7a6c29634d2f93eab24b5e6be03d,

title = "High-performance fluorine-doped cobalt-free oxide as a potential cathode material for solid oxide fuel cells",

abstract = "The potential utilization of the cobalt-free fluorine-doped LaBa0.5Sr0.5Fe2O5.875-δF0.125 oxide as a solid oxide fuel cell (SOFC) cathode candidate is investigated and assessed. The polarization resistance of the LaBa0.5Sr0.5Fe2O5.875-δF0.125 cathode is 0.089 Ω cm2 at 750 °C, and meanwhile, a larger power density of the electrolyte-supported single cell with the LaBa0.5Sr0.5Fe2O5.875-δF0.125 cathode is 511 mWcm−2. In addition, the electrode still possesses a better stability after 120 h operation. Combining with the oxygen reduction kinetics research and the corresponding distribution of relaxation time analysis, rate-determining steps are further defined. Current research results indicate that the LaBa0.5Sr0.5Fe2O5.875-δF0.125 sample is an attractive cathode for SOFCs.",

keywords = "Cathode, Doping, ORR, Perovskite",

author = "Huan Li and Zhe L{\"u}",

note = "Publisher Copyright: {\textcopyright} 2020 Hydrogen Energy Publications LLC",

year = "2021",

month = jan,

day = "6",

doi = "10.1016/j.ijhydene.2020.10.074",

language = "英语",

volume = "46",

pages = "2503--2510",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd",

number = "2",

}

TY - JOUR

T1 - High-performance fluorine-doped cobalt-free oxide as a potential cathode material for solid oxide fuel cells

AU - Li, Huan

AU - Lü, Zhe

PY - 2021/1/6

Y1 - 2021/1/6

N2 - The potential utilization of the cobalt-free fluorine-doped LaBa0.5Sr0.5Fe2O5.875-δF0.125 oxide as a solid oxide fuel cell (SOFC) cathode candidate is investigated and assessed. The polarization resistance of the LaBa0.5Sr0.5Fe2O5.875-δF0.125 cathode is 0.089 Ω cm2 at 750 °C, and meanwhile, a larger power density of the electrolyte-supported single cell with the LaBa0.5Sr0.5Fe2O5.875-δF0.125 cathode is 511 mWcm−2. In addition, the electrode still possesses a better stability after 120 h operation. Combining with the oxygen reduction kinetics research and the corresponding distribution of relaxation time analysis, rate-determining steps are further defined. Current research results indicate that the LaBa0.5Sr0.5Fe2O5.875-δF0.125 sample is an attractive cathode for SOFCs.

AB - The potential utilization of the cobalt-free fluorine-doped LaBa0.5Sr0.5Fe2O5.875-δF0.125 oxide as a solid oxide fuel cell (SOFC) cathode candidate is investigated and assessed. The polarization resistance of the LaBa0.5Sr0.5Fe2O5.875-δF0.125 cathode is 0.089 Ω cm2 at 750 °C, and meanwhile, a larger power density of the electrolyte-supported single cell with the LaBa0.5Sr0.5Fe2O5.875-δF0.125 cathode is 511 mWcm−2. In addition, the electrode still possesses a better stability after 120 h operation. Combining with the oxygen reduction kinetics research and the corresponding distribution of relaxation time analysis, rate-determining steps are further defined. Current research results indicate that the LaBa0.5Sr0.5Fe2O5.875-δF0.125 sample is an attractive cathode for SOFCs.

KW - Cathode

KW - Doping

KW - ORR

KW - Perovskite

UR - https://www.scopus.com/pages/publications/85095954162

U2 - 10.1016/j.ijhydene.2020.10.074

DO - 10.1016/j.ijhydene.2020.10.074

M3 - 文章

AN - SCOPUS:85095954162

SN - 0360-3199

VL - 46

SP - 2503

EP - 2510

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 2

ER -

High-performance fluorine-doped cobalt-free oxide as a potential cathode material for solid oxide fuel cells

Abstract

UN SDGs

Keywords

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