Journal ArticleDOI
Appraisal of Ce1−yGdyO2−y/2 electrolytes for IT-SOFC operation at 500°C
TLDR
In this article, the authors evaluated thermodynamic and electrical conductivity data to select the most appropriate electrolyte composition for IT-SOFC operation at 500°C and found that the Gd 3+ ion is the preferred dopant, compared to Sm 3+ and Y 3+, at this temperature.About:
This article is published in Solid State Ionics.The article was published on 2000-04-01. It has received 1888 citations till now. The article focuses on the topics: Gadolinium-doped ceria & Ionic conductivity.read more
Citations
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Journal ArticleDOI
Materials for fuel-cell technologies
TL;DR: Recent progress in the search and development of innovative alternative materials in the development of fuel-cell stack is summarized.
Journal ArticleDOI
A high-performance cathode for the next generation of solid-oxide fuel cells
Zongping Shao,Sossina M. Haile +1 more
TL;DR: BSCF is presented as a new cathode material for reduced-temperature SOFC operation and demonstrated that BSCF is ideally suited to ‘single-chamber’ fuel-cell operation, where anode and cathode reactions take place within the same physical chamber.
Journal ArticleDOI
Factors Governing Oxygen Reduction in Solid Oxide Fuel Cell Cathodes
TL;DR: These advances have led to dozens of active SOFC development programs in both stationary and mobile power and contributed to commercialization or development in a number of related technologies, including gas sensors, solid-state electrolysis devices, and iontransport membranes for gas separation and partial oxidation.
Journal ArticleDOI
Advanced anodes for high-temperature fuel cells
A. Atkinson,Scott A. Barnett,Raymond J. Gorte,John T. S. Irvine,Augustin J. McEvoy,Mogens Bjerg Mogensen,Subhash C. Singhal,John M. Vohs +7 more
TL;DR: Recent developments of SOFC fuel electrodes that will enable the better use of readily available fuels are discussed, particularly the fuel electrode or anode.
Journal ArticleDOI
Solid oxide fuel cells
TL;DR: In this article, the authors discuss the particular issues facing the development of a high temperature solid-state fuel cell and the inorganic materials currently used and under investigation for such cells, together with the problems associated with operating SOFCs on practical hydrocarbon fuels.
References
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Journal ArticleDOI
A direct-methane fuel cell with a ceria-based anode
TL;DR: In this paper, the authors reported the direct electrochemical oxidation of methane in solid oxide fuel cells that generate power densities upto 0.37 W cm−2 at 650°C.
Journal ArticleDOI
Electrode Kinetics of Porous Mixed‐Conducting Oxygen Electrodes
TL;DR: In this paper, the authors used continuum modeling to analyze the mechanism of the oxygen reduction reaction at a porous mixed-conducting oxygen electrode, and showed that solid-state oxygen diffusion and surface exchange dominate the electrochemical behavior, producing effective "chemical" resistances and capacitances.
Book
Science and Technology of Zirconia
TL;DR: A review of current understanding of zirconia-based ceramics can be found in this paper, where 76 papers comprise six sections including phase transformations and phase stability, mechanical aspects of transformation toughening, microstructural aspects of transformations, structural and other applications, electrolytic properties and applications, and processing.
Journal ArticleDOI
Optimisation of composite cathodes for intermediate temperature SOFC applications
V. Dusastre,John A. Kilner +1 more
TL;DR: In this article, the electrochemical properties of the interfaces between porous composites of La 06 Sr 04 Co 02 Fe 08 O 3−δ /Ce 09 Gd 01 O 2− δ cathodes have been investigated at intermediate temperatures (500-700°C) using AC impedance spectroscopy.
Journal ArticleDOI
Lattice Parameters, Ionic Conductivities, and Solubility Limits in Fluorite-Structure MO2 Oxide [M = Hf4+, Zr4+, Ce4+, Th4+, U4+] Solid Solutions
TL;DR: In this article, a generalized relationship between dopant size and ionic conductivity in binary systems of MO2 oxides was shown, illustrating that the smaller the difference between the dopant ionic radius and the critical dopant radius, the higher the conductivity.