Bilayered anode supports for planar solid oxide fuel cells: Fabrication and electrochemical performance

E. A. Agarkova, I. N. Burmistrov, D. A. Agarkov, O. Yu Zadorozhnaya, A. V. Shipilova, A. A. Solovyev, Yu K. Nepochatov, S. I. Bredikhin

Research output: Contribution to journalArticlepeer-review

Abstract

Bilayered substrates for anode-supported solid oxide fuel cells (SOFCs), made of NiO and 10 mol.% Sc2O3 and 1 mol.% Y2O3 co-stabilized zirconia (10Sc1YSZ), were produced employing the tape casting technique. The optimization of the pore former (rice starch) content in the starting suspension and thermal treatment conditions provide necessary porosity, simultaneously maintaining sufficiently high mechanical strength of the composite measured by the three-point bending method. Bilayered gas-tight solid electrolyte films of 8 mol.% Y2O3 stabilized zirconia and 10 mol.% Gd2O3 doped ceria (8YSZ/10GDC) were deposited by magnetron sputtering, followed by annealing at 1200 °C. The area-specific power density of a model SOFC achieved 1.8, 1.4, and 0.9 W/cm2 at 800, 750, and 700 °C, respectively.

Original languageEnglish
Article number128752
JournalMaterials Letters
Volume283
DOIs
Publication statusPublished - 15 Jan 2021
Externally publishedYes

Keywords

  • Anode supports
  • Green tape
  • Laminates
  • Mechanical strength
  • Multilayer structure
  • Solid oxide fuel cells

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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