Effects of Fe2O3 doping on structural and electrical properties of 8 mol% yttria-stabilized zirconia electrolyte for solid oxide fuel cells

Ok Sung Jeon; Myeong Geun Park; Rak Hyun Song; Kwang Hyun Ryu; Chan Woong Na; Yong Gun Shul; Jin Goo Lee

doi:10.1007/s10854-021-07522-w

Effects of Fe₂O₃ doping on structural and electrical properties of 8 mol% yttria-stabilized zirconia electrolyte for solid oxide fuel cells

Ok Sung Jeon, Myeong Geun Park, Rak Hyun Song, Kwang Hyun Ryu, Chan Woong Na, Yong Gun Shul, Jin Goo Lee

Department of Chemical and Biomolecular Engineering

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

3 Citations (Scopus)

Abstract

The effects of doping a trace of Fe₂O₃ on the structural and electrical properties of 8 mol% yttria-stabilized zirconia (8YSZ) are investigated. The 8YSZ electrolytes doped with various Fe₂O₃ contents are applied to a solid oxide fuel cell to confirm whether it is positive or negative for SOFC performances. In this study, the 8YSZ electrolyte with a trace of Fe₂O₃ shows the increased oxygen vacancies and better ionic conductivity. The optimum Fe₂O₃ doping content is 500 ppm at a sintering temperature of 1400 °C. The 8YSZ electrolyte doped with 500 ppm Fe₂O₃ shows 0.122 S cm⁻¹ and 0.598 W cm⁻² at 800 °C in the ionic conductivity and maximum power density, respectively. The power density of the cell based on the 8YSZ electrolyte doped with 500 ppm Fe₂O₃ is about 1.5 times higher than the cell using the pristine 8YSZ electrolyte. Thus, the introduction of a trace of Fe₂O₃ to the 8YSZ can improve its structural and electrical properties and finally SOFC performances.

Original language	English
Pages (from-to)	3208-3214
Number of pages	7
Journal	Journal of Materials Science: Materials in Electronics
Volume	33
Issue number	6
DOIs	https://doi.org/10.1007/s10854-021-07522-w
Publication status	Published - 2022 Feb

Bibliographical note

Funding Information:
This work was supported by National Research Foundation of Korea (NRF) grant funded by Korea government (MSIT) (No. 2021R1A2C2092130). This research was supported by the National Research Council of Science & Technology(NST) grant by the Korea government (MSIT) (No. CPS21131-100). This research was supported by Materials, Components & Equipment Research Program funded by the Gyeonggi Province.

Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1007/s10854-021-07522-w

Cite this

@article{c3458f434b5f4f66825f9c63821c1724,

title = "Effects of Fe2O3 doping on structural and electrical properties of 8 mol% yttria-stabilized zirconia electrolyte for solid oxide fuel cells",

abstract = "The effects of doping a trace of Fe2O3 on the structural and electrical properties of 8 mol% yttria-stabilized zirconia (8YSZ) are investigated. The 8YSZ electrolytes doped with various Fe2O3 contents are applied to a solid oxide fuel cell to confirm whether it is positive or negative for SOFC performances. In this study, the 8YSZ electrolyte with a trace of Fe2O3 shows the increased oxygen vacancies and better ionic conductivity. The optimum Fe2O3 doping content is 500 ppm at a sintering temperature of 1400 °C. The 8YSZ electrolyte doped with 500 ppm Fe2O3 shows 0.122 S cm−1 and 0.598 W cm−2 at 800 °C in the ionic conductivity and maximum power density, respectively. The power density of the cell based on the 8YSZ electrolyte doped with 500 ppm Fe2O3 is about 1.5 times higher than the cell using the pristine 8YSZ electrolyte. Thus, the introduction of a trace of Fe2O3 to the 8YSZ can improve its structural and electrical properties and finally SOFC performances.",

author = "Jeon, {Ok Sung} and Park, {Myeong Geun} and Song, {Rak Hyun} and Ryu, {Kwang Hyun} and Na, {Chan Woong} and Shul, {Yong Gun} and Lee, {Jin Goo}",

note = "Funding Information: This work was supported by National Research Foundation of Korea (NRF) grant funded by Korea government (MSIT) (No. 2021R1A2C2092130). This research was supported by the National Research Council of Science & Technology(NST) grant by the Korea government (MSIT) (No. CPS21131-100). This research was supported by Materials, Components & Equipment Research Program funded by the Gyeonggi Province. Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.",

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AU - Song, Rak Hyun

AU - Ryu, Kwang Hyun

AU - Na, Chan Woong

AU - Shul, Yong Gun

AU - Lee, Jin Goo

N1 - Funding Information: This work was supported by National Research Foundation of Korea (NRF) grant funded by Korea government (MSIT) (No. 2021R1A2C2092130). This research was supported by the National Research Council of Science & Technology(NST) grant by the Korea government (MSIT) (No. CPS21131-100). This research was supported by Materials, Components & Equipment Research Program funded by the Gyeonggi Province. Publisher Copyright: © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

PY - 2022/2

Y1 - 2022/2

N2 - The effects of doping a trace of Fe2O3 on the structural and electrical properties of 8 mol% yttria-stabilized zirconia (8YSZ) are investigated. The 8YSZ electrolytes doped with various Fe2O3 contents are applied to a solid oxide fuel cell to confirm whether it is positive or negative for SOFC performances. In this study, the 8YSZ electrolyte with a trace of Fe2O3 shows the increased oxygen vacancies and better ionic conductivity. The optimum Fe2O3 doping content is 500 ppm at a sintering temperature of 1400 °C. The 8YSZ electrolyte doped with 500 ppm Fe2O3 shows 0.122 S cm−1 and 0.598 W cm−2 at 800 °C in the ionic conductivity and maximum power density, respectively. The power density of the cell based on the 8YSZ electrolyte doped with 500 ppm Fe2O3 is about 1.5 times higher than the cell using the pristine 8YSZ electrolyte. Thus, the introduction of a trace of Fe2O3 to the 8YSZ can improve its structural and electrical properties and finally SOFC performances.

AB - The effects of doping a trace of Fe2O3 on the structural and electrical properties of 8 mol% yttria-stabilized zirconia (8YSZ) are investigated. The 8YSZ electrolytes doped with various Fe2O3 contents are applied to a solid oxide fuel cell to confirm whether it is positive or negative for SOFC performances. In this study, the 8YSZ electrolyte with a trace of Fe2O3 shows the increased oxygen vacancies and better ionic conductivity. The optimum Fe2O3 doping content is 500 ppm at a sintering temperature of 1400 °C. The 8YSZ electrolyte doped with 500 ppm Fe2O3 shows 0.122 S cm−1 and 0.598 W cm−2 at 800 °C in the ionic conductivity and maximum power density, respectively. The power density of the cell based on the 8YSZ electrolyte doped with 500 ppm Fe2O3 is about 1.5 times higher than the cell using the pristine 8YSZ electrolyte. Thus, the introduction of a trace of Fe2O3 to the 8YSZ can improve its structural and electrical properties and finally SOFC performances.

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