Open AccessCycling Characteristics of Tubular Liquid Antimony Anode Solid Oxide Fuel Cells Prepared by Atmospheric Plasma Spraying
Author(s) -
Yidong Jiang,
Yixiang Shi,
Ningsheng Cai
Publication year - 2021
Publication title -
journal of the electrochemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.258
H-Index - 271
eISSN - 1945-7111
pISSN - 0013-4651
DOI - 10.1149/1945-7111/ac3596
Subject(s) - anode , materials science , solid oxide fuel cell , oxide , chemical engineering , electrolyte , antimony , cathode , spark plug , electrode , metallurgy , chemistry , aerospace engineering , engineering
Liquid antimony anode solid oxide fuel cell (LAA-SOFC) is a promising technology for efficient conversion of solid carbon and hydrocarbon fuels. However, the operating process and the regeneration method of the fuel cells with LAAs are different from those with solid anodes and still need to be investigated. In the present research, a tubular LAA-SOFC unit was fabricated by atmospheric plasma spraying based on a stainless-steel support. The LAA-SOFC was cycled by a furnace control method and a “hot plug” method to simulate the normal start-stop and the anode/cell replacement processes, respectively. Scarce degradation was observed after the cycles with phase change, redox and temperature variation, which demonstrated the robustness of the sprayed electrolyte to the anode changes. The air leakage and the floating ash retarded the recovery rate of the “hot plug” cycles, but have no influence on the degradation degree. The cycling characteristics in the present research proved the long-term operating feasibility of SOFC with LAA.