Electrolytes for solid oxide fuel cells
authors Figueiredo, FML; Marques, FMB
nationality International
journal WILEY INTERDISCIPLINARY REVIEWS-ENERGY AND ENVIRONMENT
keywords YTTRIA-STABILIZED ZIRCONIA; ENHANCED IONIC-CONDUCTIVITY; DOPED LANTHANUM GALLATE; ELECTRICAL-PROPERTIES; TRANSPORT-PROPERTIES; GRAIN-BOUNDARIES; COMPOSITE ELECTROLYTES; ELECTRONIC CONDUCTION; CERIA; DEFECT
abstract 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.
publisher WILEY PERIODICALS, INC
issn 2041-8396
year published 2013
volume 2
issue 1
beginning page 52
ending page 72
digital object identifier (doi) 10.1002/wene.23
web of science category Energy & Fuels
subject category Energy & Fuels
unique article identifier WOS:000343208000004
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  impact metrics
journal analysis (jcr 2017):
journal impact factor 2.514
5 year journal impact factor 2.857
category normalized journal impact factor percentile 48.969
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