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Freestanding Micro‐SOFCs with Electrodes Prepared by Electrostatic Spray Deposition
Author(s) -
Choi S. H.,
Kim S. W.,
Hwang C. S.,
Lee M. H.
Publication year - 2014
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.201300251
Subject(s) - materials science , anode , cathode , yttria stabilized zirconia , non blocking i/o , electrolyte , solid oxide fuel cell , cubic zirconia , chemical engineering , electrode , deposition (geology) , composite material , ceramic , chemistry , biochemistry , paleontology , sediment , biology , engineering , catalysis
We report a freestanding micro solid oxide fuel cell with both the anode and cathode deposited using electrostatic spray deposition (ESD) technique. The cell is consisted of dense yittria‐stabilized zirconia (YSZ) electrolyte (100 nm thick), porous lanthanum strontium manganite (LSM)–YSZ cathode (∼3 μm thick), and porous NiO‐YSZ anode (∼3 μm thick). LSM‐YSZ and NiO‐YSZ composite powders were initially prepared by glycine nitrate process and super‐critical fluid processes, respectively, and both cathode and anode layers were deposited by the ESD. The resulting freestanding micro cell exhibited an open circuit voltage close to the theoretical value of 1.09 V, and a maximum power density of 41.3 mWcm –2 at 640 °C.