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Solid Oxide Fuel Cells (SOFCs): From Design to Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Energy Materials".

Deadline for manuscript submissions: closed (20 February 2022) | Viewed by 2502

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Guest Editor
Institute of Catalysis and Surface Chemistry of the Polish Academy of Sciences, Krakow, Poland
Interests: cathode materials for solid oxide fuel cells; oxygen reduction reaction in solid oxide fuel cells; electrochemical impedance spectroscopy; usage of silver in solid oxide fuel cells; solid oxide fuel cells with proton conducting electrolyte; intermediate temperature solid oxide fuel cells; corrosion of magnesium alloys
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Special Issue Information

Dear Colleagues,

The production of energy from fossil fuels causes many environmental problems. Useful forms of renewable energy may be directly obtained from solar and wind resources; however, due to their discontinuity, storage of energy in the chemical form is a great challenge today.

Among all known types of fuel cells, solid oxide fuel cells (SOFCs) show the highest efficiency and are attractive for storage and regeneration of renewable energy by operating reversibly in solid oxide electrolysis cell (SOEC) and SOFC modes.

SOFC with proton-conducting electrolytes are expected to reveal a very high efficiency due to the fact that water is emitted at the cathode, not at the anode, which does not lead to dilution of the fuel. The challenge is to obtain novel electrolyte and electrode materials which are at the same time efficient and resistant to corrosion caused by used gases such as steam and CO2.

This Special Issue will focus on the recent progress of preparation novel materials for SOFC/SOEC with proton-conducting electrolytes, their tests, properties, performance of such SOFC SOEC, and their application.

Dr hab. Michał Mosiałek
Guest Editor

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Keywords

  • solid oxide fuel cells with proton conducting electrolyte (PC-SOFC)
  • cathode materials for PC-SOFC
  • electrolyte materials for PC-SOFC
  • reversible SOFC/solid oxide electrolysis cell (SOEC)
  • CO2 resistant materials for PC-SOFC
  • CO2 resistant materials for SOFC/SOEC
  • CO2 and steam co-electrolysis in SOEC
  • low temperature SOFC
  • application of PC-SOFC
  • application of SOFC/SOEC

Published Papers (1 paper)

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Research

14 pages, 3978 KiB  
Article
Improvement of La0.8Sr0.2MnO3−δ Cathode Material for Solid Oxide Fuel Cells by Addition of YFe0.5Co0.5O3
by Michał Mosiałek, Małgorzata Zimowska, Dzmitry Kharytonau, Anna Komenda, Miłosz Górski and Marcel Krzan
Materials 2022, 15(2), 642; https://doi.org/10.3390/ma15020642 - 15 Jan 2022
Cited by 7 | Viewed by 1923
Abstract
The high efficiency of solid oxide fuel cells with La0.8Sr0.2MnO3−δ (LSM) cathodes working in the range of 800–1000 °C, rapidly decreases below 800 °C. The goal of this study is to improve the properties of LSM cathodes working [...] Read more.
The high efficiency of solid oxide fuel cells with La0.8Sr0.2MnO3−δ (LSM) cathodes working in the range of 800–1000 °C, rapidly decreases below 800 °C. The goal of this study is to improve the properties of LSM cathodes working in the range of 500–800 °C by the addition of YFe0.5Co0.5O3 (YFC). Monophasic YFC is synthesized and sintered at 950 °C. Composite cathodes are prepared on Ce0.8Sm0.2O1.9 electrolyte disks using pastes containing YFC and LSM powders mixed in 0:1, 1:19, and 1:1 weight ratios denoted LSM, LSM1, and LSM1, respectively. X-ray diffraction patterns of tested composites reveal the presence of pure perovskite phases in samples sintered at 950 °C and the presence of Sr4Fe4O11, YMnO3, and La0.775Sr0.225MnO3.047 phases in samples sintered at 1100 °C. Electrochemical impedance spectroscopy reveals that polarization resistance increases from LSM1, by LSM, to LSM2. Differences in polarization resistance increase with decreasing operating temperatures because activation energy rises in the same order and equals to 1.33, 1.34, and 1.58 eV for LSM1, LSM, and LSM2, respectively. The lower polarization resistance of LSM1 electrodes is caused by the lower resistance associated with the charge transfer process. Full article
(This article belongs to the Special Issue Solid Oxide Fuel Cells (SOFCs): From Design to Applications)
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