Abstract
The possibility of fabricating large-area solid oxide fuel cells (SOFC) with thin film electrolyte using a commercial physical vapor deposition technology is investigated. Yttria-stabilized zirconia (YSZ)/gadolinium-doped ceria (GDC) bilayer electrolyte is successfully deposited on a 10 × 5 cm2 commercial NiO/YSZ anode support by reactive magnetron sputtering. The microstructure of the fuel cells was studied by scanning electron microscopy. Current-voltage characteristics of fuel cells at a temperature of 750°C and their power stability under electrical load were investigated. Single cells with La0.6Sr0.4Co0.2Fe0.8O3/ Gd0.1Ce0.9O1.95 (LSCF/GDC) cathode had an open cell voltage of 1.14 V and a maximum power density of 490 mW cm−2 at 750 °C using H2/N2 gas mixture as fuel and air as the oxidant. Three-cell planar SOFC stack using 10 × 5 cm2 anode-supported unit cells with power density of 450 mW cm−2 at a voltage of 0.7 V per cell has been assembled and tested.
Original language | English |
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Pages (from-to) | 378-382 |
Number of pages | 5 |
Journal | Fuel Cells |
Volume | 17 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Jun 2017 |
Keywords
- Bilayer Electrolyte
- Fuel Cells
- Magnetron Sputtering
- Stack Performance
- Thin Films
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology