Characteristics of Slurry‐Coated Nickel Zirconia Cermet Anodes for Solid Oxide Fuel Cells
- 1 October 1990
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 137 (10) , 3042-3047
- https://doi.org/10.1149/1.2086156
Abstract
Polarization characteristics were studied in nickel and yttria stabilized zirconia cermet (Ni‐YSZ cermet) electrodes in order to search for an adequate fabrication condition of a planar solid oxide fuel cell. Several electrodes were prepared by the slurry coating method, and dc and ac polarization behaviors were investigated at 1273 K in atmosphere. An experimental equation was derived to describe a typical dc polarization curve of a Ni‐YSZ cermet electrode. Effects of fabrication temperature, nickel content, and material powder were investigated in terms of deviation from this equation. Anodic overvoltage with a carefully prepared electrode was decreased to about 0.12V at 1 A/cm2.Keywords
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