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Abstract
In-doped SrCe0.9In0.1O3-δ (SCI) perovskite-type oxide is utilized as the solid electrolyte, as well as a component, together with SrFe0.75Mo0.25O3-δ (SFM) compound, in the composite-type electrodes to construct symmetrical Protonic Ceramic Fuel Cells (PCFC). With good mutual stability of SCI and SFM at high temperatures in water vapor-containing reducing and oxidizing conditions, as well as sufficient ionic conductivity with high proton transference number of SrCe0.9In0.1O3-δ, and high electronic conduction of SrFe0.75Mo0.25O3-δ, effectiveness of the electrochemical reactions is ensured. It is documented that 80:20 wt.% SFM-SCI electrode performs better, comparing to the one having 50:50 wt.% ratio of both compounds, with both electrodes showing lower polarization resistance values in the reducing conditions. Symmetrical SCI-SFM|SCI|SCI-SFM cells can be operated in normal (PCFC) and reversed, Protonic Ceramic Electrolyzer Cell (PCEC) mode, showing similar shape of current density-voltage characteristics. The maximum obtained power density is 32 mW cm−2 at 800 °C.
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Authors (5)
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Anna Stępień
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Alicja Klimkowicz
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
MATERIALS RESEARCH BULLETIN
no. 135,
ISSN: 0025-5408 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Skubida W., Zheng K., Stępień A., Świerczek K., Klimkowicz A.: SrCe0.9In0.1O3-δ-based reversible symmetrical Protonic Ceramic Cell// MATERIALS RESEARCH BULLETIN -Vol. 135, (2021), s.111154-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.materresbull.2020.111154
- Verified by:
- Gdańsk University of Technology
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