Electrochemical Performance of a Ni and YSZ Composite Synthesised by Ultrasonic Spray Pyrolysis as an Anode for SOFCs | Zendy

Park H. J. | Zendy; Shao Z. | Zendy; Wang W. | Zendy; Moon K. S. | Zendy

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Electrochemical Performance of a Ni and YSZ Composite Synthesised by Ultrasonic Spray Pyrolysis as an Anode for SOFCs

Author(s) -

Park H. J.,

Shao Z.,

Wang W.,

Moon K. S.

Publication year - 2011

Publication title -

fuel cells

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.485

H-Index - 69

eISSN - 1615-6854

pISSN - 1615-6846

DOI - 10.1002/fuce.201100026

Subject(s) - materials science , anode , yttria stabilized zirconia , electrolyte , solid oxide fuel cell , cubic zirconia , microstructure , non blocking i/o , chemical engineering , electrochemistry , oxide , composite number , pyrolysis , composite material , metallurgy , ceramic , electrode , chemistry , catalysis , organic chemistry , engineering

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.

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