LST-GDC composite anode on LaGaO(3)-based solid oxide fuel cell
SCIE
SCOPUS
- Title
- LST-GDC composite anode on LaGaO(3)-based solid oxide fuel cell
- Authors
- Yoo, KB; Choi, GM
- Date Issued
- 2011-06-16
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- La-doped SrTiO3 (LST, La0.2Sr0.8TiO3) is a candidate as an anode material to solve the problem of Ni-based anode in LaGaO3-based SOFC. LST-Gd0.2Ce0.8O2-delta (GDC) anodes of various composition ratios were evaluated in order to optimize the performance of composite anode on LaGaO3-based solid oxide fuel cell. Electrochemical impedance spectra (EIS) indicated that the addition of GDC into LST significantly reduces the anode polarization thus leading to an increased performance. LST30-GDC70 (LST:GDC = 30:70 wt.%) composite anode showed the lowest polarization-resistance value at 800 degrees C. With further Ni impregnation into anode, the maximum power density of the single cell was similar to 0.3 W/cm(2) at 800 degrees C in air/97% H-2 + 3% H2O gas. The result demonstrated the potential use of LST-GDC as a SOFC anode. (C) 2010 Elsevier B.V. All rights reserved.
- Keywords
- SOFC; Anode; Polarization resistance; Perovskite; Impregnation; LANTHANUM GALLATE ELECTROLYTE; DOPED STRONTIUM-TITANATE; DIRECT OXIDATION; SOFC ANODES; PERFORMANCE; TEMPERATURE; SRTIO3
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17192
- DOI
- 10.1016/J.SSI.2010.06.048
- ISSN
- 0167-2738
- Article Type
- Article
- Citation
- SOLID STATE IONICS, vol. 192, no. 1, page. 515 - 518, 2011-06-16
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