Journal
FUEL
Volume 161, Issue -, Pages 168-173Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2015.08.050
Keywords
Solid oxide fuel cell; In-situ methane reforming; Performance enhancement; Stability
Categories
Funding
- National Basic Research Program of China (973 Program) [2012CB215404]
- NSFC Projects [51261120378, 51402355]
- Beijing projects [2050205, 2154056, Z151100000315031]
- Shanxi Province Project [MD2014-08]
- Tsinghua University Projects [SKLD15Z02, 543404001]
- China University of Mining & Technology (Beijing) Foundation
- State Scholarship Fund of China Scholarship Council [201406430041]
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Solid Oxide Fuel Cell (SOFC) is a promising power generation technology with a wide range of fuel flexibility. In this paper, performance evaluation of SOFC fuelled with carbon based fuels like CH4 were carried out on La0.8Sr0.2Ga0.83Mg0.17O3-delta (LSGM) electrolyte supported single cell with symmetrical electrodes consisted of La0.4Sr0.6Co0.2Fe0.7Nb0.1O3-delta (LSCFN)-Gd0.1Ce0.9O1.95 (GDC) functional layers and LSCFN current collect layers. In-situ reforming of methane by carbon dioxide at the anode was successfully achieved on LSCFN based anode, which greatly enhanced the cell performance. The maximum power density of the single cell was dramatically increased from 280 to 455 mW/cm(2) when fuelled with 10% CO2-90% CH4 compared with pure methane at 850 degrees C with a fuel inlet rate of 50 mL/min. No obvious degradation was observed during the cell operation, demonstrating a stable and wide operation range with CO2-CH4 fuel on LSCFN based anode. (C) 2015 Elsevier Ltd. All rights reserved.
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