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Abstract
The H2S-tolerance of SrFe0.75Mo0.25O3-δ (SFM) electrodes has been investigated in symmetric proton ceramic fuel cells (PCFC) with BaZr0.8Ce0.1Y0.1O3-δ (BZCY81) electrolyte. The ionic conductivity of the electrolyte under wet reducing conditions was found to be insignificantly affected in the presence of up to 5000 ppm H2S. The fuel cell exhibited an OCV of about 0.9 V at 700 °C, which dropped to about 0.6 V and 0.4 V upon exposure to 500 and 5000 ppm H2S, respectively, on the fuel side. Post characterization of the fuel cell revealed significant degradation of the anode in terms of microstructure and chemical composition due to formation of sulfides such as SrS, MoS2 and Fe3S4. Nevertheless, the fuel cell was still functional due to the sufficient electronic conductivity of some of these sulfides.
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Authors (4)
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Zuoan Li PhD
- SINTEF Materials and Chemistry
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Jonathan Polfus Dr
- SINTEF Materials and Chemistry
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Truls Norby Dr
- University of Oslo Department of Chemistry
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
no. 38,
pages 163 - 171,
ISSN: 0955-2219 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Wachowski S., Li Z., Polfus J., Norby T.: Performance and Stability in H2S of SrFe0.75Mo0.25O3-δ as Electrode in Proton Ceramic Fuel Cells// JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. -Vol. 38, nr. 1 (2017), s.163-171
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jeurceramsoc.2017.08.020
- Verified by:
- Gdańsk University of Technology
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