Electrochemical Performance of a Ni and YSZ Composite Synthesised by Ultrasonic Spray Pyrolysis as an Anode for SOFCs
✍ Scribed by H. J. Park; Z. Shao; W. Wang; K. S. Moon
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 977 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1615-6846
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✦ Synopsis
Abstract
The electrochemical performance of an anode material for a solid oxide fuel cell (SOFC) depends highly on microstructure in addition to composition. In this study, a NiO–yttria‐stabilised zirconia (NiO–YSZ) composite with a highly dispersed microstructure and large pore volume/surface area has been synthesised by ultrasonic spray pyrolysis (USP) and its electrochemical characteristics has been investigated. For comparison, the electrochemical performance of a conventional NiO–YSZ is also evaluated. The power density of the zirconia electrolyte‐supported SOFC with the synthesised anode is ∼392 mW cm^–2^ at 900 °C and that of the SOFC with the conventional NiO–YSZ anode is ∼315 mW cm^–2^. The improvement is ∼24%. This result demonstrates that the synthesised NiO–YSZ is a potential alternative anode material for SOFCs fabricated with a zirconia solid electrolyte.