Stability and performance of SOFC with SrTiO3-based anode in CH4 fuel
SCIE
SCOPUS
- Title
- Stability and performance of SOFC with SrTiO3-based anode in CH4 fuel
- Authors
- Yoo, KB; Park, BH; Choi, GM
- Date Issued
- 2012-10-04
- Publisher
- Elsevier
- Abstract
- The performance of an alternative anode using LST (La0.2Sr0.8TiO3) perovskite material was tested both in H-2 and CH4 fuel. In order to compare the anodic performance, two single cells using LSGM (La0.9Sr0.1Ga0.8Mg0.2O3-delta) electrolyte with different anodes, i.e., Ni-GDC (Gd0.2Ce0.8O2-delta) and Ni-impregnated LSTC2 (La0.2Sr0.8Ti0.98Co0.02O3)-GDC anodes, were tested. Single cells were operated for 30 h in each fuel. In H-2 fuel, the performance of cell with Ni-GDC anode decreased with time. On the other hand, the maximum power density (MPD) of cell with Ni-impregnated LSTC2-GDC anode increased from 638 to 924 mW/cm(2) at 800 degrees C for 30 h in H-2 (Ni-contents in anode: 19 wt.%, thickness of electrolyte: similar to 250 mu m). In CH4 fuel, while the cell performance with Ni-GDC anode decreased similar to 44% for 30 h, the cell performance with Ni-impregnated LSTC2-GDC anode was relatively stable for 30 h. Thus the LST-based anode exhibited the good tolerance to carbon-induced deactivation in the internal utilization of hydrocarbon fuels as well as the high performance in H-2 fuel compared to the conventional Ni-based anode. (C) 2012 Elsevier B.V. All rights reserved.
- Keywords
- SOFC; Anode; Stability; Polarization resistance; Perovskite; Impregnation; DOPED STRONTIUM-TITANATE; CELLS; OXIDATION; TEMPERATURE; COMPOSITE; SUPPORT
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15943
- DOI
- 10.1016/J.SSI.2012.05.017
- ISSN
- 0167-2738
- Article Type
- Article
- Citation
- Solid State Ionics, vol. 225, page. 104 - 107, 2012-10-04
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.