Electrolytes for solid oxide fuel cells
Electrolytes for solid oxide fuel cells
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DOI：
10.1002/wene.23
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发表时间：
2013-01-01
影响因子：
6.1
通讯作者：
Marques, F. M. B.
中科院分区：
文献类型：
--
作者：
Figueiredo, F. M. L.;Marques, F. M. B.
固体氧化物燃料电池是极其灵活的能量转换系统，能够在较宽的温度范围（500-1000 摄氏度）内运行，使用各种燃料（从氢到液体燃料），包括能够扩展以提供从毫瓦到兆瓦范围的功率的概念。固体电解质作为离子电荷载体，是决定燃料电池系统运行特性（即工作温度）的核心部件之一。新电解质的设计包括离子缺陷浓度和迁移率的控制。这里，特别关注各种类型结构中的点缺陷、位错、晶界和异质结构界面对离子输运的影响。回顾了源自结构和成分特征以及微观结构特征的特性，包括最近的复杂工程薄膜。对主要材料系列的关键性能参数进行了比较。最后，评估成分、结构、微观结构和应变对离子传输的影响，作为固体电解质材料未来发展的补充工具。 (C) 2012 约翰·威利父子公司。
Solid oxide fuel cells are extremely flexible energy conversion systems able to operate within a broad temperature range (500-1000 degrees C), with a variety of fuels (from hydrogen to liquid fuels), including concepts able to be scaled to deliver power from the milliwatt to the megawatt range. The solid electrolyte, as an ionic charge carrier, is one central component that determines the operational characteristics of the fuel cell system, namely the working temperature. Design of new electrolytes includes manipulation of ionic defects concentration and mobility. Here, particular attention is given to the impact on ionic transport of point defects in various types of structures, dislocations, grain boundaries, and heterostructure interfaces. Properties derived from structural and compositional characteristics, but also from microstructural features, including recent complex engineered thin films, are reviewed. Major families of materials are compared with respect to key performance parameters. Finally, the effects of composition, structure, microstructure, and strain on ionic transport are assessed as complementary tools for future developments in solid electrolyte materials. (C) 2012 John Wiley & Sons, Ltd.