Fabrication and characterization of anode-supported single chamber solid oxide fuel cell based on La_0.6Sr_0.4Co_0.2Fe_0.8O_{3鈭?span style='font-style: italic'>未}-Ce_0.9Gd_0.1O_1.95 composite cathode

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• 作者：L.P. Sun ; M. Rieu ; J.P. Viricelle ; C. Pijolat ; H. Zhao
• 关键词：SOFC ; Single chamber ; Electrolyte microstructure ; LSCF-CGO cathode
• 刊名：International Journal of Hydrogen Energy
• 出版年：13 January, 2014
• 年：2014
• 卷：39
• 期：2
• 页码：1014-1022
• 全文大小：2100 K

文摘

Anode-supported solid oxide fuel cells consisting of nickel-gadolinium doped ceria (NiO-CGO, 60:40聽wt%) anode, gadolinium doped ceria (CGO) electrolyte and lanthanum strontium cobaltite ferrite-gadolinium doped ceria (LSCF-CGO) cathode are developed and operated under single-chamber conditions, utilizing methane/air mixture. The cell performance is optimized regarding the electrolyte microstructure, cathode composition and testing conditions. The performance of the cell improves with the decrease of the thickness of the electrolyte and the increase of the ratio of methane to oxygen. The test cell with LSCF-CGO cathode (70:30聽wt%) that was sintered at 1100聽掳C for 2聽h and 150聽渭m dense electrolyte exhibits the maximum power output of 鈭?60聽mW聽cm^鈭? at 600聽掳C in CH₄/O₂聽=聽2 atmosphere.