Recent Novel Fabrication Techniques for Proton-Conducting Solid Oxide Fuel Cells

Autor: Mengyang Yu, Qiuxia Feng, Zhipeng Liu, Peng Zhang, Xuefeng Zhu, Shenglong Mu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Crystals, Vol 14, Iss 3, p 225 (2024)
Druh dokumentu: article
ISSN: 14030225
2073-4352
DOI: 10.3390/cryst14030225
Popis: Research has been conducted on solid oxide fuel cells (SOFCs) for their fuel flexibility, modularity, high efficiency, and power density. However, the high working temperature leads to the deterioration of materials and increased operating costs. Considering the high protonic conductivity and low activation energy, the proton conducting SOFC, i.e., the protonic ceramic fuel cell (PCFC), working at a low temperature, has been wildly investigated. The PCFC is a promising state-of-the-art electrochemical energy conversion system for ecological energy; it is characterized by near zero carbon emissions and high efficiency, and it is environment-friendly. The PCFC can be applied for the direct conversion of various renewable fuels into electricity at intermediate temperatures (400–650 °C). The construction of the PCFC directly affect its properties; therefore, manufacturing technology is the crucial factor that determines the performance. As a thinner electrolyte layer will lead to a lower polarization resistance, a uniformly constructed and crack-free layer which can perfectly bond to electrodes with a large effective area is challenging to achieve. In this work, different fabrication methods are investigated, and their effect on the overall performance of PCFCs is evaluated. This article reviews the recent preparation methods of PCFCs, including common methods, 3D printing methods, and other advanced methods, with summarized respective features, and their testing and characterization results.
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