Evaluation of metal-supported solid oxide fuel cells (MS-SOFCs) fabricated at low temperature (similar to 1,000 degrees C) using wet chemical coating processes and a catalyst wet impregnation method

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The objective of this study is to evaluate metal-supported solid oxide fuel cells fabricated at low temperatures (similar to 1000 degrees C) in oxidizing environments using wet chemical coating processes and a catalyst impregnation method. Typically, applying general wet chemical coating processes and heat treatment at low temperature is desirable for fabricating metal supported solid oxide fuel cells when considering manufacturing productivity and efficiency. However, in the case of conventional anodes, a well-organized structure for high performance is rarely formed by sintering at low temperatures when using general fabrication processes. For this reason, a catalyst-impregnated anode is designed and applied to overcome the above issue. First, to evaluate the electrochemical performance of the designed anode, the area-specific resistances of half-cells are investigated. Then, the newly designed anode is applied to a single cell, and microstructural analysis and electrochemical performance measurements are performed. These results confirm that the catalysts are well distributed, that the electrolyte is fully dense and that the electrochemical performances are reasonable. Additionally, the high durability is also verified through a long-term test over 1000 h. Finally, the metal-supported solid oxide fuel cell with a catalyst impregnated anode fabricated at low temperature is completely validated through the evaluation of a large-size single cell. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2018-02
Language
English
Article Type
Article
Keywords

STAINLESS-STEEL; JOINING PROCESS; ANODE MATERIALS; PERFORMANCE; PROGRESS; INTERCONNECT; ELECTRODES; STABILITY; LAYERS; CERIA

Citation

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.43, no.7, pp.3786 - 3796

ISSN
0360-3199
DOI
10.1016/j.ijhydene.2018.01.027
URI
http://hdl.handle.net/10203/240955
Appears in Collection
ME-Journal Papers(저널논문)
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