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This paper reports a stability test comparison between ammonia- and syngas-fueled anode-supported cells (ASC). The planar (50 x 50 mm2) ASC is consisted of 400-µm-Ni-YSZ anode, 3-µm-YSZ electrolyte, and 12-µm-LSC-GDC cathode together with metallic frames and current collectors which are sandwiched by a pair of rib-channel flow distributors (interconnectors) with guide vanes on both anode and cathode sides to form a single-full-cell stack in a dual-chamber pressure/temperature-controlled facility. Pressurization enhances the power density noticeably for both ammonia- and syngas-fueled ASCs. Little degradation is observed for the pressurized ammonia-fueled ASC at 0.8 V at 700oC (power density and stability increase with increasing temperature). However, the syngas-fueled ASC can only remain stable at 1 atm and at higher temperature (≥ 800oC); after five hours stable operation, a rapid degradation is observed at 3 atm due to severe carbon deposition even at 850oC.
|Title of host publication||Solid Oxide Fuel Cells 16, SOFC 2019|
|Editors||K. Eguchi, S. C. Singhal|
|Publisher||Electrochemical Society Inc.|
|Number of pages||8|
|ISBN (Electronic)||9781607688747, 9781607688747|
|State||Published - 2019|
|Event||16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan|
Duration: 8 Sep 2019 → 13 Sep 2019
|Conference||16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019|
|Period||8/09/19 → 13/09/19|
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Advanced Ammonia Sofc Full Cell Manufacture, Assembly and Testing and Its Conceptual Design for Portable Power Source(2/3)
1/08/18 → 31/07/19