Premium
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.