Article
Nanoscience & Nanotechnology
Matthias Riegraf, Ilaria Bombarda, Ferdinand Domling, Tom Liensdorf, Carolin Sitzmann, Nico Langhof, Stefan Schaffoener, Feng Han, Noriko Sata, Christian Geipel, Christian Walter, Remi Costa
Summary: Research shows that by adjusting the morphology and processing of the ceria interlayers, it is possible to significantly reduce residual stress in the cell and increase mechanical strength. This new approach holds promise for increasing the volumetric power density and material efficiency of solid oxide cell systems.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Jun Zhang, Sandrine Ricote, Peter Vang Hendriksen, Yunzhong Chen
Summary: Solid oxide fuel cells (SOFCs) are efficient electrochemical energy conversion devices that have the potential to become low cost. However, their high operating temperatures have hindered their widespread commercialization. This review summarizes the recent progress in developing materials to lower the operating temperature of SOFCs and discusses the new opportunities and challenges. The focus is on thin film SOFCs, sub-micrometer SOFCs based on microelectromechanical systems, and devices based on proton-conducting oxide electrolyte.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
M. Tomas, V. Asokan, J. Puranen, J. -e. Svensson, J. Froitzheim
Summary: Solid Oxide Fuel Cells (SOFCs) require coated interconnects between individual cells to protect the steel and maintain electrical conductivity. Comparative analysis of different coating materials revealed that Ce/Co, Ce/Cu, and Mn/Co coatings exhibited superior protective performance and lower resistance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Nanoscience & Nanotechnology
Matthias Riegraf, Feng Han, Noriko Sata, Remi Costa
Summary: The study investigates the performance of different thicknesses of CGO layers manufactured by electron beam physical vapor deposition on solid oxide cells. Results show that a 0.15 μm thick layer leads to the formation of a continuous Sr-containing secondary phase at the CGO/YSZ interface, while 0.3 and 0.5 μm thick layers can maintain high performance and low degradation rates.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Coatings & Films
Hooman Rahmani, Ignacio Lopez Cabanas
Summary: Electron beam physical vapour deposition is a reliable technique for depositing coatings with desired microstructures, but controlling the chemical composition of alloy coatings is a complex task requiring consideration of several features. This paper summarises important work done in this area to achieve a homogeneous and controlled chemical composition in deposited films, discussing technical and fundamental aspects.
SURFACE ENGINEERING
(2021)
Review
Chemistry, Physical
Fuyuan Liang, JiaRan Yang, Yuanyuan Zhao, Yexin Zhou, Zilin Yan, JianChao He, Qunhui Yuan, Junwei Wu, Peng Liu, Zheng Zhong, Minfang Han
Summary: This review summarizes recent progress in thin-film electrolytes fabricated by the PVD method, particularly pulsed laser deposition (PLD) and magnetron sputtering. The importance of substrate surface morphology for film quality is emphasized. The fabrication of doped-zirconia and doped-ceria electrolytes is presented, along with a brief summary of other types of electrolytes prepared by PVD.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Multidisciplinary
Kairat A. Kuterbekov, Alexey Nikonov, Kenzhebatyr Zh Bekmyrza, Nikita B. Pavzderin, Asset M. Kabyshev, Marzhan M. Kubenova, Gaukhar D. Kabdrakhimova, Nursultan Aidarbekov
Summary: This review summarizes various types of solid oxide fuel cells (SOFC) and describes their structural features, advantages, and disadvantages. Among the well-studied dual-chamber SOFC, those with anode-supported design and oxygen-ion conducting electrolyte are found to be the most suitable for operation at temperatures below 800 degrees C. Other promising types for low-temperature operation include SOFC with proton-conducting electrolyte and electrolyte-free fuel cells, although further research and development are needed for commercialization.
Article
Green & Sustainable Science & Technology
Victor Zapata-Ramirez, Paula Rosendo-Santos, Ulises Amador, Clemens Ritter, Glenn C. Mather, Domingo Perez-Coll
Summary: Strontium-ferrite-based perovskites have been studied as cobalt-free cathodes for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The experimental results show that the spray-pyrolysed electrodes exhibit lower resistances and smaller grain sizes at 700°C compared to the electrodes synthesized by the Pechini method. Moreover, the spray-pyrolysed electrodes, especially the Mo-doped phase, demonstrate better stability after thermal cycling and ageing tests.
Article
Chemistry, Physical
Kleitos Panagi, Christian J. Laycock, James P. Reed, Alan J. Guwy
Summary: This study investigates the effects of biohythane mixtures on the electrical performance and fuel processing of a SOFC, showing that blending H2/CO2 with CH4 to make biohythane can significantly increase SOFC efficiency and durability while reducing CH4 consumption.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Hiroyuki Shimada, Hirofumi Sumi, Yuki Yamaguchi, Katsuhiro Nomura, Yasunobu Mizutani, Yoshinobu Fujishiro, Woosuck Shin
Summary: This study presents high-performance nanocomposite cathode and anode layers that greatly improve the power density of solid oxide fuel cells (SOFCs).
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Agata Sawka
Summary: Non-porous, amorphous and nanocrystalline CeO2-La2O3 layers were synthesized by MOCVD using Ce (tmhd)(4) and La(tmhd)(3) as reactants. The chemical composition and crystalline phase of the layers varied under different temperatures and molar contents of La(tmhd)(3).
CERAMICS INTERNATIONAL
(2021)
Editorial Material
Materials Science, Multidisciplinary
Bryan W. Stuart, George E. Stan
Summary: This Special Issue focuses on the developments of Physical Vapour Deposited (PVD) biomedical coatings, particularly in dentistry and orthopaedics. These methods have not yet been widely adopted in the biomedical industry. The new generation of implant coatings can be achieved through innovative approaches.
Article
Materials Science, Multidisciplinary
Roman Gabor, Ladislav Cvrcek, Martina Doubkova, Vaclav Nehasil, Josef Hlinka, Petr Unucka, Matej Buril, Adela Podeprelova, Jana Seidlerova, Lucie Bacakova
Summary: This study focuses on preparing new hybrid layers for surface modification of Ti-6Al-4V alloys, which demonstrate excellent tribological properties and promote osteogenic differentiation of bone cells.
MATERIALS & DESIGN
(2022)
Review
Chemistry, Physical
Mandeep Singh, Dario Zappa, Elisabetta Comini
Summary: Fuel cells are becoming increasingly popular as a highly efficient, clean, and sustainable energy conversion source with different types having their own pros and cons. Solid oxide fuel cells (SOFC) are gaining attention for their high efficiency and versatility in utilizing various fuels apart from hydrogen. Recent advancements mainly focus on two types of SOFC stack designs and their implications for medium and large power requirements.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Coatings & Films
Navid Marchin, Fakhreddin Ashrafizadeh
Summary: The study investigated the effect of carbon addition on the tribological behavior of multilayered TiSiN coating and compared the performance of TiSiCN and TiSiN coatings on cold forming steel dies. Results showed that TiSiCN coating exhibited better performance in terms of friction coefficient and wear rate, with the ability to significantly extend the lifespan of the dies.
SURFACE & COATINGS TECHNOLOGY
(2021)
