Spray pyrolysis of doped-ceria barrier layers for solid oxide fuel cells

Dagmara Szymczewska, Aleksander Chrzan, Jakub Karczewski, Sebastian Molin, Piotr Jasinski

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Gadolinium doped ceria (Ce0.8Gd0.2O2-x-CGO) layer fabricated by spray pyrolysis is investigated as the diffusion barrier for solid oxide fuel cell. It is deposited between the La0.6Sr0.4FeO3-ð cathode and the yttria stabilized zirconia electrolyte to mitigate harmful interdiffusion of elements. The parameters of the fabrication process are linked to the measured area specific resistances of the symmetrical cells and the efficiency of the fuel cells. Results show, that application of 800 nm thick barrier effectively hinder negative reactions, while 400 nm thick layer is sufficient to prevent degradation of the Ohmic resistance.
Original languageEnglish
JournalSurface and Coatings Technology
Volume313
Pages (from-to)168-176
ISSN0257-8972
DOIs
Publication statusPublished - 2017

Keywords

  • Gadolinium doped ceria
  • Solid oxide fuel cells
  • Spray pyrolysis
  • Interlayer
  • Functional layer

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