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J. Korean Ceram. Soc. > Volume 57(2); 2020 > Article
Journal of the Korean Ceramic Society 2020;57(2): 135-151.
doi: https://doi.org/10.1007/s43207-020-00022-3
Materials and nano‑structural processes for use in solid oxide fuel cells: a review
Seungyeon Jo1, Bharat Sharma1, Dae‑Hwan Park2, Jea‑ha Myung1
1Department of Materials Science and Engineering, Incheon National University, Incheon 406772, South Korea
2Department of Nano Materials Science and Engineering, Kyungnam University, Changwon 51767, South Korea
Correspondence  Dae‑Hwan Park ,Email: dhpark@kyungnam.ac.kr
Jea‑ha Myung ,Email: mjaeha@inu.ac.kr
Received: September 17, 2019; Revised: October 14, 2019   Published online: February 29, 2020.
ABSTRACT
Solid oxide fuel cells (SOFCs) are considered to be the focus of investigation for energy systems owing to their efficiency in converting chemical energy into electrical energy, low carbon footprint, and fuel flexibility. Despite their high performance and durability, SOFCs suffer from critical problems such as carbon coking, agglomeration, and poor redox stability. This review presents research on the development of nanostructures for use in commercial SOFC systems and highlights various aspects of research and applications across the globe. The materials utilized for anodes, electrolytes, and cathodes are discussed and compared, detailing how their respective properties can attain high catalytic activity, conductivity, and stability at low temperatures with the aim of direct application using diverse fuels such as hydrogen, hydrocarbons, and carbon fuels. This review also discusses and compares the various processes used for the synthesis of the electrodes and electrolytes used in SOFCs, such as physical vapor deposition (PVD), chemical vapor deposition (CVD), infiltration, and in situ exsolution, that have gained much attention with a view to increase the active areas, decrease the Ohmic resistance, and reduce the manufacturing price.
Key words: Fuel cell · Thin films · Nanostructure
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