Synthesis and characterization of electrolyte-grade 10%Gd-doped ceria thin film/ceramic substrate structures for solid oxide fuel cells

M. G. Chourashiya, S. R. Bharadwaj, L. D. Jadhav

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

In the present research, spray pyrolysis technique is employed to synthesize 10%Gd-doped ceria (GDC) thin films on ceramic substrates with an intention to use the "film/substrate" structure in solid oxide fuel cells. GDC films deposited on GDC substrate showed enhanced crystallite formation. In case of NiO-GDC composite substrate, the thickness of film was higher (∼ 13 μm) as compared to the film thickness on GDC substrate (∼ 2 μm). The relative density of the films deposited on both the substrates was of the order of 95%. The impedance measurements revealed that ionic conductivity of GDC/NiO-GDC structure was of the order of 0.10 S/cm at 500 °C, which is a desirable property for its prospective application.

Original languageEnglish
Pages (from-to)650-657
Number of pages8
JournalThin Solid Films
Volume519
Issue number2
DOIs
StatePublished - 1 Nov 2010
Externally publishedYes

Keywords

  • 10%Gd-doped ceria
  • Ceramic thin films
  • Phase-contacts
  • Solid oxide fuel cell
  • Spray pyrolysis

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