Preparation of gadolinium-doped ceria barrier layer for intermediate temperature solid oxide fuel cells by spin coating and evaluation of performance degradation by impedance analysis

Zeyu Jiang; Bernardo Jordao Moreira Sarruf; Ahmad El-Kharouf; Robert Steinberger-Wilckens

doi:10.1016/j.ceramint.2024.04.046

Preparation of gadolinium-doped ceria barrier layer for intermediate temperature solid oxide fuel cells by spin coating and evaluation of performance degradation by impedance analysis

Zeyu Jiang^*, Bernardo Jordao Moreira Sarruf, Ahmad El-Kharouf, Robert Steinberger-Wilckens

^*Corresponding author for this work

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

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Abstract

Thin gadolinium-doped ceria (GDC) films were deposited via the cost-effective aqueous spin coating technique and with rapid one-step sintering at 1200 °C, to be used as barrier layer between a lanthanum strontium cobalt ferrite (LSCF) cathode and a scandia-ceria-stabilised zirconia (ScCeSZ) electrolyte within a solid oxide fuel cell (SOFC) configuration. A 5.5 μm-thick GDC film was deposited using a 50 wt% GDC slurry in 3 cycles. The single cell comprising this GDC film produced a peak power density of over 1.00 W•cm⁻² at 750 °C in hydrogen operation. Electrochemical impedance spectroscopy was carried out to investigate the SOFC performance evolution with potential changes in microstructure over time. An operational stability test was also conducted at a current density of 0.2 A•cm⁻² for over 1200 h. The degradation behaviour of each electrochemical process as a function of cell operating time was evaluated by the distribution of relaxation times method based on the obtained electrochemical impedance spectra.

Original language	English
Pages (from-to)	23222-23231
Journal	Ceramics International
Volume	50
Issue number	13
Early online date	4 Apr 2024
DOIs	https://doi.org/10.1016/j.ceramint.2024.04.046
Publication status	Published - 1 Jul 2024

Bibliographical note

Acknowledgments:
This work was financially supported by the EPSRC, grant number EP/L015749/1, through the Centre for Doctoral Training (CDT) in Fuel Cells and Their Fuels, led by the Centre for Fuel Cell and Hydrogen Research, Birmingham, United Kingdom.

Bernardo Jordão Moreira Sarruf acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 101032423.

Keywords

Solid oxide fuel cells
Ceria/zirconia bi-layer electrolyte
Spin coating
Degradation

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10.1016/j.ceramint.2024.04.046Licence: Creative Commons: Attribution (CC BY)

JiangZ2024PreparationFinal published version, 11.3 MBLicence: Creative Commons: Attribution (CC BY)

FleXelL - Reversible solid oxide cell development for the utilisation of alternative fuels and hydrogen strategic production
Steinberger-Wilckens, R. (Principal Investigator) & Jordao Moreira Sarruf, B. (Co-Investigator)
European Commission
12/10/21 → 11/10/23
Project: EU

Cite this

@article{8700666275b44d66bfdf34521d6d86fa,

title = "Preparation of gadolinium-doped ceria barrier layer for intermediate temperature solid oxide fuel cells by spin coating and evaluation of performance degradation by impedance analysis",

abstract = "Thin gadolinium-doped ceria (GDC) films were deposited via the cost-effective aqueous spin coating technique and with rapid one-step sintering at 1200 °C, to be used as barrier layer between a lanthanum strontium cobalt ferrite (LSCF) cathode and a scandia-ceria-stabilised zirconia (ScCeSZ) electrolyte within a solid oxide fuel cell (SOFC) configuration. A 5.5 μm-thick GDC film was deposited using a 50 wt\% GDC slurry in 3 cycles. The single cell comprising this GDC film produced a peak power density of over 1.00 W•cm−2 at 750 °C in hydrogen operation. Electrochemical impedance spectroscopy was carried out to investigate the SOFC performance evolution with potential changes in microstructure over time. An operational stability test was also conducted at a current density of 0.2 A•cm−2 for over 1200 h. The degradation behaviour of each electrochemical process as a function of cell operating time was evaluated by the distribution of relaxation times method based on the obtained electrochemical impedance spectra.",

keywords = "Solid oxide fuel cells, Ceria/zirconia bi-layer electrolyte, Spin coating, Degradation",

author = "Zeyu Jiang and \{Jordao Moreira Sarruf\}, Bernardo and Ahmad El-Kharouf and Robert Steinberger-Wilckens",

note = "Acknowledgments: This work was financially supported by the EPSRC, grant number EP/L015749/1, through the Centre for Doctoral Training (CDT) in Fuel Cells and Their Fuels, led by the Centre for Fuel Cell and Hydrogen Research, Birmingham, United Kingdom. Bernardo Jord{\~a}o Moreira Sarruf acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 101032423.",

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Jiang, Z, Jordao Moreira Sarruf, B , El-Kharouf, A & Steinberger-Wilckens, R 2024, 'Preparation of gadolinium-doped ceria barrier layer for intermediate temperature solid oxide fuel cells by spin coating and evaluation of performance degradation by impedance analysis', Ceramics International, vol. 50, no. 13, pp. 23222-23231. https://doi.org/10.1016/j.ceramint.2024.04.046

Preparation of gadolinium-doped ceria barrier layer for intermediate temperature solid oxide fuel cells by spin coating and evaluation of performance degradation by impedance analysis. / Jiang, Zeyu; Jordao Moreira Sarruf, Bernardo ; El-Kharouf, Ahmad et al.
In: Ceramics International, Vol. 50, No. 13, 01.07.2024, p. 23222-23231.

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

TY - JOUR

T1 - Preparation of gadolinium-doped ceria barrier layer for intermediate temperature solid oxide fuel cells by spin coating and evaluation of performance degradation by impedance analysis

AU - Jiang, Zeyu

AU - Jordao Moreira Sarruf, Bernardo

AU - El-Kharouf, Ahmad

AU - Steinberger-Wilckens, Robert

N1 - Acknowledgments: This work was financially supported by the EPSRC, grant number EP/L015749/1, through the Centre for Doctoral Training (CDT) in Fuel Cells and Their Fuels, led by the Centre for Fuel Cell and Hydrogen Research, Birmingham, United Kingdom. Bernardo Jordão Moreira Sarruf acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 101032423.

PY - 2024/7/1

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N2 - Thin gadolinium-doped ceria (GDC) films were deposited via the cost-effective aqueous spin coating technique and with rapid one-step sintering at 1200 °C, to be used as barrier layer between a lanthanum strontium cobalt ferrite (LSCF) cathode and a scandia-ceria-stabilised zirconia (ScCeSZ) electrolyte within a solid oxide fuel cell (SOFC) configuration. A 5.5 μm-thick GDC film was deposited using a 50 wt% GDC slurry in 3 cycles. The single cell comprising this GDC film produced a peak power density of over 1.00 W•cm−2 at 750 °C in hydrogen operation. Electrochemical impedance spectroscopy was carried out to investigate the SOFC performance evolution with potential changes in microstructure over time. An operational stability test was also conducted at a current density of 0.2 A•cm−2 for over 1200 h. The degradation behaviour of each electrochemical process as a function of cell operating time was evaluated by the distribution of relaxation times method based on the obtained electrochemical impedance spectra.

AB - Thin gadolinium-doped ceria (GDC) films were deposited via the cost-effective aqueous spin coating technique and with rapid one-step sintering at 1200 °C, to be used as barrier layer between a lanthanum strontium cobalt ferrite (LSCF) cathode and a scandia-ceria-stabilised zirconia (ScCeSZ) electrolyte within a solid oxide fuel cell (SOFC) configuration. A 5.5 μm-thick GDC film was deposited using a 50 wt% GDC slurry in 3 cycles. The single cell comprising this GDC film produced a peak power density of over 1.00 W•cm−2 at 750 °C in hydrogen operation. Electrochemical impedance spectroscopy was carried out to investigate the SOFC performance evolution with potential changes in microstructure over time. An operational stability test was also conducted at a current density of 0.2 A•cm−2 for over 1200 h. The degradation behaviour of each electrochemical process as a function of cell operating time was evaluated by the distribution of relaxation times method based on the obtained electrochemical impedance spectra.

KW - Solid oxide fuel cells

KW - Ceria/zirconia bi-layer electrolyte

KW - Spin coating

KW - Degradation

UR - https://www.scopus.com/pages/publications/85189902834

U2 - 10.1016/j.ceramint.2024.04.046

DO - 10.1016/j.ceramint.2024.04.046

M3 - Article

SN - 0272-8842

VL - 50

SP - 23222

EP - 23231

JO - Ceramics International

JF - Ceramics International

IS - 13

ER -

Preparation of gadolinium-doped ceria barrier layer for intermediate temperature solid oxide fuel cells by spin coating and evaluation of performance degradation by impedance analysis

Abstract

Bibliographical note

Keywords

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Projects

FleXelL - Reversible solid oxide cell development for the utilisation of alternative fuels and hydrogen strategic production

Cite this