Pressurized ammonia and syngas planar anode-supported solid oxide fuel cells and their performance stability test

S. S. Shy, Y. T. Hung, Z. H. Chou, Z. L. Bong, J. J. Jhao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages745-752
Number of pages8
Edition1
ISBN (Electronic)9781607688747, 9781607688747
DOIs
StatePublished - 2019
Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
Duration: 8 Sep 201913 Sep 2019

Publication series

NameECS Transactions
Number1
Volume91
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
Country/TerritoryJapan
CityKyoto
Period8/09/1913/09/19

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