Magnetron sputtering of gadolinium-doped ceria electrolyte for intermediate temperature solid oxide fuel cells

Andrey A. Solovyev, Sergey V. Rabotkin, Anna V. Shipilova, Igor V. Ionov

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Reactive magnetron sputtering was used for deposition of thin Gd-doped ceria (GDC) films on porous NiO-YSZ (nickel oxide-yttria stabilized zirconia) substrates. X-ray diffraction and scanning electron microscopy were used to study the effect of cathode peak power density on 5-7 μm-thick film's microstructure and surface morphology. It was shown that peak power density (changed from 52 to 490 W/cm2) has an effect on the crystallite size, microstrains and texture coefficient of the GDC electrolyte. Increasing peak power density suppresses the columnar structure of deposited films and leads to formation of more continuous and denser films. As a result, anode-supported single cells with sputtered at room temperature GDC electrolyte were fabricated and demonstrated maximum power density of 1.07 W/cm2 at 750 °C.

Original languageEnglish
Pages (from-to)575-584
Number of pages10
JournalInternational Journal of Electrochemical Science
Volume14
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019
Externally publishedYes

Keywords

  • Electrochemical performance
  • Gadolinium-doped ceria
  • Magnetron sputtering
  • Microstructure
  • SOFC

ASJC Scopus subject areas

  • Electrochemistry

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