Effects of accelerated degradation on metal supported thin film-based solid oxide fuel cell

R. P. Reolon, S. Sanna, Yu Xu, I. Lee, C. P. Bergmann, N. Pryds, V. Esposito*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

A thin film-based solid oxide fuel cell is deposited on a Ni-based metal porous support by pulsed laser deposition with a multi-scale-graded microstructure design. The fuel cell, around 1 μm in thickness, is composed of a stabilized-zirconia/doped-ceria bi-layered dense electrolyte and nanostructured Ni-stabilized zirconia and La0.6Sr0.4CoO3 electrodes as the anode and cathode, respectively. The cell is tested at intermediate temperatures (600–650 °C) with the aim to discern the degradation mechanisms occurring in the cell under accelerated conditions. Under open circuit conditions, electrochemical performances are steady, indicating the stability of the cell. Under electrical load, a progressive degradation is activated. Post-test analysis reveals both mechanical and chemical degradation of the cell. Cracks and delamination of the thin films promote a significant nickel diffusion and new phase formation. Signs of elemental distribution at low temperature are detected throughout the cell, indicating a combination of low energy surface elemental interdiffusion and electromigration effects.
Original languageEnglish
JournalJournal of Materials Chemistry A
Volume6
Issue number17
Pages (from-to)7887-7896
Number of pages10
ISSN2050-7488
DOIs
Publication statusPublished - 2018

Cite this

@article{43cca642bda0484ab660d0a5ed962595,
title = "Effects of accelerated degradation on metal supported thin film-based solid oxide fuel cell",
abstract = "A thin film-based solid oxide fuel cell is deposited on a Ni-based metal porous support by pulsed laser deposition with a multi-scale-graded microstructure design. The fuel cell, around 1 μm in thickness, is composed of a stabilized-zirconia/doped-ceria bi-layered dense electrolyte and nanostructured Ni-stabilized zirconia and La0.6Sr0.4CoO3 electrodes as the anode and cathode, respectively. The cell is tested at intermediate temperatures (600–650 °C) with the aim to discern the degradation mechanisms occurring in the cell under accelerated conditions. Under open circuit conditions, electrochemical performances are steady, indicating the stability of the cell. Under electrical load, a progressive degradation is activated. Post-test analysis reveals both mechanical and chemical degradation of the cell. Cracks and delamination of the thin films promote a significant nickel diffusion and new phase formation. Signs of elemental distribution at low temperature are detected throughout the cell, indicating a combination of low energy surface elemental interdiffusion and electromigration effects.",
author = "Reolon, {R. P.} and S. Sanna and Yu Xu and I. Lee and Bergmann, {C. P.} and N. Pryds and V. Esposito",
year = "2018",
doi = "10.1039/C7TA11091J",
language = "English",
volume = "6",
pages = "7887--7896",
journal = "Journal of Materials Chemistry A",
issn = "2050-7488",
publisher = "RSC Publications",
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}

Effects of accelerated degradation on metal supported thin film-based solid oxide fuel cell. / Reolon, R. P.; Sanna, S.; Xu, Yu; Lee, I.; Bergmann, C. P. ; Pryds, N.; Esposito, V.

In: Journal of Materials Chemistry A, Vol. 6, No. 17, 2018, p. 7887-7896.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Effects of accelerated degradation on metal supported thin film-based solid oxide fuel cell

AU - Reolon, R. P.

AU - Sanna, S.

AU - Xu, Yu

AU - Lee, I.

AU - Bergmann, C. P.

AU - Pryds, N.

AU - Esposito, V.

PY - 2018

Y1 - 2018

N2 - A thin film-based solid oxide fuel cell is deposited on a Ni-based metal porous support by pulsed laser deposition with a multi-scale-graded microstructure design. The fuel cell, around 1 μm in thickness, is composed of a stabilized-zirconia/doped-ceria bi-layered dense electrolyte and nanostructured Ni-stabilized zirconia and La0.6Sr0.4CoO3 electrodes as the anode and cathode, respectively. The cell is tested at intermediate temperatures (600–650 °C) with the aim to discern the degradation mechanisms occurring in the cell under accelerated conditions. Under open circuit conditions, electrochemical performances are steady, indicating the stability of the cell. Under electrical load, a progressive degradation is activated. Post-test analysis reveals both mechanical and chemical degradation of the cell. Cracks and delamination of the thin films promote a significant nickel diffusion and new phase formation. Signs of elemental distribution at low temperature are detected throughout the cell, indicating a combination of low energy surface elemental interdiffusion and electromigration effects.

AB - A thin film-based solid oxide fuel cell is deposited on a Ni-based metal porous support by pulsed laser deposition with a multi-scale-graded microstructure design. The fuel cell, around 1 μm in thickness, is composed of a stabilized-zirconia/doped-ceria bi-layered dense electrolyte and nanostructured Ni-stabilized zirconia and La0.6Sr0.4CoO3 electrodes as the anode and cathode, respectively. The cell is tested at intermediate temperatures (600–650 °C) with the aim to discern the degradation mechanisms occurring in the cell under accelerated conditions. Under open circuit conditions, electrochemical performances are steady, indicating the stability of the cell. Under electrical load, a progressive degradation is activated. Post-test analysis reveals both mechanical and chemical degradation of the cell. Cracks and delamination of the thin films promote a significant nickel diffusion and new phase formation. Signs of elemental distribution at low temperature are detected throughout the cell, indicating a combination of low energy surface elemental interdiffusion and electromigration effects.

U2 - 10.1039/C7TA11091J

DO - 10.1039/C7TA11091J

M3 - Journal article

VL - 6

SP - 7887

EP - 7896

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

SN - 2050-7488

IS - 17

ER -