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Evaluation of a Single Cell and Candidate Materials with High‐Water‐Content Hydrogen in a Generic Solid Oxide Fuel Cell Stack Test Fixture, Part I: Test Fixture and Electrochemical Performance
Author(s) -
Chou YeongShyung,
Stevenson Jeffry W.,
Choi JungPyung
Publication year - 2010
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2010.02564.x
Subject(s) - materials science , test fixture , solid oxide fuel cell , stack (abstract data type) , fixture , cathode , electrolyte , degradation (telecommunications) , yttria stabilized zirconia , oxide , electrochemistry , composite material , computer science , electrode , mechanical engineering , cubic zirconia , engineering , metallurgy , ceramic , electrical engineering , chemistry , telecommunications , programming language
A generic solid oxide fuel cell test fixture intended to evaluate candidate materials under realistic conditions was developed. A commerical NiO–YSZ‐supported YSZ electrolyte and LSM–YSZ cathode cell was tested to evaluate the stability of candidate materials. The cell was tested in two stages of low‐ and high‐water‐content fuel at 800°C. Part I of the work will describe the test fixture, electrochemical performance of the cell, and postmortem analysis. In part I, the cell showed a substantial degradation in the first stage and no degradation afterward. Impedance and I – V curves were recorded. Optical and scanning electron microscopywere used for characterization and seal assessment.