Solid Oxide Fuel Cells and Electrolyzers

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: closed (31 May 2020) | Viewed by 6259

Special Issue Editors


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Guest Editor
Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, 80-233 Gdansk, Poland
Interests: protonic conductors; solid oxide fuel cells; electrolyzers; thermal analysis
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Co-Guest Editor
Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, ul. Narutowicza 11/12, 80-233 Gdańsk, Poland
Interests: mixed conducting ceramics; solid oxide cells; electrical properties; electrochemistry of solids; nanotechnology

Special Issue Information

Dear Colleagues,

Hydrogen technologies are more important today than they have ever been; therefore, the knowledge gained on the materials required for their construction will be crucial for a new sustainable society.

From the point of view of both energy conversion and hydrogen production, crystalline-based devices are a current trend in research. Solid oxide fuel cells and electrolyzers play a more important role in energy technologies, and thus, research in these areas becomes very important for a modern sustainable society.

We invite you to contribute to this Special Issue and share your research. We encourage all scientists active in the broad topic of fuel cells and electrolyzer technologies to submit original papers or reviews. We want to highlight the most recent advances, challenges, and perspectives in this research area.

Dr. Aleksandra Mielewczyk-Gryń
Dr. Tadeusz Miruszewski
Guest Editors

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Keywords

  • Fuel cells
  • Ceramics
  • Ion conductors
  • Ceramic membranes
  • Electrolyzers

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Published Papers (2 papers)

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Research

8 pages, 2826 KiB  
Article
GDC Buffer Layer Synthesized by Reactive Magnetron Sputtering: Effect of Total Pressure and Thickness on SOFC Performances
by Lara Bouleau, Noelia Coton, Pierre Coquoz, Raphael Ihringer, Alain Billard and Pascal Briois
Crystals 2020, 10(9), 759; https://doi.org/10.3390/cryst10090759 - 28 Aug 2020
Cited by 8 | Viewed by 2638
Abstract
Gadolinia-doped ceria (GDC) buffer layers were synthesized by reactive magnetron sputtering under different total pressures and different thickness. All as-deposited and after an annealing treatment during two hours under air at 1000 °C coating presents a face centered cubic (f.c.c) structure of ceria [...] Read more.
Gadolinia-doped ceria (GDC) buffer layers were synthesized by reactive magnetron sputtering under different total pressures and different thickness. All as-deposited and after an annealing treatment during two hours under air at 1000 °C coating presents a face centered cubic (f.c.c) structure of ceria with dense and adhesive morphology. The cell synthesized under 0.1 Pa and 0.57 µm present the best performances. (open-circuit voltage (OCV): 1.133 eV and power density: 1650 mW·cm−2 @ 800 mA·cm−2 at 790 °C). Full article
(This article belongs to the Special Issue Solid Oxide Fuel Cells and Electrolyzers)
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13 pages, 4817 KiB  
Article
LaxPr4−xNi3O10−δ: Mixed A-Site Cation Higher-Order Ruddlesden-Popper Phase Materials as Intermediate-Temperature Solid Oxide Fuel Cell Cathodes
by Mudasir A. Yatoo, Zhihong Du, Zhang Yang, Hailei Zhao and Stephen J. Skinner
Crystals 2020, 10(6), 428; https://doi.org/10.3390/cryst10060428 - 27 May 2020
Cited by 12 | Viewed by 3055
Abstract
Systematic studies of the air electrode and full solid oxide fuel cell performance of La3PrNi3O9.76, and La2Pr2Ni3O9.65 n = 3 Ruddlesden–Popper phases are reported. These phases were found to adopt [...] Read more.
Systematic studies of the air electrode and full solid oxide fuel cell performance of La3PrNi3O9.76, and La2Pr2Ni3O9.65 n = 3 Ruddlesden–Popper phases are reported. These phases were found to adopt orthorhombic symmetry with a decrease in lattice parameters on increasing Pr content, consistent with the solid solution series end members. From electrochemical impedance spectroscopy measurements of symmetrical cells, the electrodes were found to possess area specific resistances of 0.07 Ω cm2 for the La2Pr2Ni3O9.65 cathode and 0.10 Ω cm2 for the La3PrNi3O9.76 cathode at 750 °C, representing a significant improvement on previously reported compositions. This significant improvement in performance is attributed to the optimisation of the electrode microstructure, introduction of an electrolyte interlayer and the resulting improved adhesion of the electrode layer. Following this development, the new electrode materials were tested for their single-cell performance, with the maximum power densities obtained for La2Pr2Ni3O9.65 and La3PrNi3O9.76 being 390 mW cm−2 and 400 mW cm−2 at 800 °C, respectively. As these single-cell measurements were based on thick electrolytes, there is considerable scope to enhance over cell performance in future developments. Full article
(This article belongs to the Special Issue Solid Oxide Fuel Cells and Electrolyzers)
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