Jump to main content
Jump to site search

Issue 17, 2018
Previous Article Next Article

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

Author affiliations

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.

Graphical abstract: Effects of accelerated degradation on metal supported thin film-based solid oxide fuel cells

Back to tab navigation

Publication details

The article was received on 19 Dec 2017, accepted on 25 Mar 2018 and first published on 30 Mar 2018


Article type: Paper
DOI: 10.1039/C7TA11091J
Citation: J. Mater. Chem. A, 2018,6, 7887-7896
  •   Request permissions

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

    R. P. Reolon, S. Sanna, Y. Xu, I. Lee, C. P. Bergmann, N. Pryds and V. Esposito, J. Mater. Chem. A, 2018, 6, 7887
    DOI: 10.1039/C7TA11091J

Search articles by author

Spotlight

Advertisements