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- Title
Characterization of a Cu-La<sub>0.75</sub>Sr<sub>0.25</sub>Cr<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub> -CeO<sub>2</sub>/La<sub>0.75</sub>Sr<sub>0.25</sub>Cr<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub>-YSZ/Ni-ScSZ Three-Layer Structure Anode in Thin Film Solid Oxide Fuel Cell Running on Methane Fuel
- Authors
Huang, B.; Gu, X.-Z.; Hu, Y.-X.; Liu, Y.-B.; Zhou, W.-T.; Hou, C.-Y.; Zhu, X.-J.
- Abstract
Anodes for Solid Oxide Fuel Cell that is capable of directly using hydrocarbon without external reforming have been of great interest recently. In this paper, a three-layer structure anode running on methane is fabricated by tape casting and screen printing method. The slurry of catalyst layer Cu-LSCM-CeO2 (with weight ratios of 1.5:7.0:1.5, 2.0:7.0:1.0, 2.15:7.0:0.85 and 2.25:7.0:0.75, weight ratios of Cu/CeO2 is 1:1, 2:1, 2.5:1 and 3:1, respectively) is screen-printed on LSCM-YSZ support layer and Ni-ScSZ active layer. Thus, LSCM-YSZ/Ni-ScSZ anodes with Cu-LSCM-CeO2 catalyst layer (denoted as LSCM-YSZ1010, LSCM-YSZ2010, LSCM-YSZ2510 and LSCM-YSZ3010, respectively) are obtained. Single cells with three-layer structure anode are also fabricated and measured, of which the maximum power density reaches 491 and 670 mW cm−2 for the cell with LSCM-YSZ2510 anode running on methane at 750 °C and 800 °C, respectively. No significant degradation in performance has been observed after 240h of cell testing when LSCM-YSZ2510 anode is exposed to methane at 750 °C. Very little carbon deposition is detected on the anode, suggesting that carbon deposition is limited during cell operation. Consequently, Cu-LSCM-CeO2 catalyst layer on the surface of LSCM-YSZ support layer makes it possible to have good stability for long-term operation in methane due to very little carbon deposition.
- Subjects
SOLID oxide fuel cell electrodes; ANODES -- Design &; construction; TAPE casting; SCREEN process printing; POWER density; METHANE as fuel; COMBUSTION deposits in engines
- Publication
Fuel Cells, 2015, Vol 15, Issue 2, p398
- ISSN
1615-6846
- Publication type
Article
- DOI
10.1002/fuce.201400108