Two-Layer Fuel Cell Electrolyte Structure by Sol-Gel Processing

Two-Layer Fuel Cell Electrolyte Structure by Sol-Gel Processing

Thin layers of yttria-stabilized zirconia (YSZ) at 11 mol% Y2O3 doping level was deposited on a sintered disk of Y2O3 doped ceria electrolyte by spin-coating from an alkoxide solution. Dense sintered films were obtained by heat-treatment at 600°C. Open circuit voltage (OCV) was measured across the d...

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Veröffentlicht in:Journal of sol-gel science and technology 1998-07, Vol.11 (2), p.203-207
Hauptverfasser: Mehta, Karun, Xu, Ren, Virkar, Anil V
Format: Artikel
Sprache:eng
Schlagworte:
Cerium oxides
Electrolytes
Fuel cells
Heat treatment
Hydrogen fuels
Open circuit voltage
Sintering
Sol-gel processes
Spin coating
Thin films
Yttria-stabilized zirconia
Yttrium oxide
Zirconium dioxide
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Zusammenfassung:Thin layers of yttria-stabilized zirconia (YSZ) at 11 mol% Y2O3 doping level was deposited on a sintered disk of Y2O3 doped ceria electrolyte by spin-coating from an alkoxide solution. Dense sintered films were obtained by heat-treatment at 600°C. Open circuit voltage (OCV) was measured across the disk in a fuel cell mode with hydrogen fuel on the ceria side and pure oxygen on the YSZ side. Marked improvement of OCV was obtained on the two-layer electrolyte structure with the sol-gel YSZ film.
ISSN:0928-0707
1573-4846
DOI:10.1023/A:1008605816691