Journal ArticleDOI
Electrical conductivities of SrFeO3−δ and BaFeO3−δ perovskites
TLDR
In this article, the conductivities and Seebeck coefficients of the BaFeO3−δ perovskites were measured in air, O2, and N2 in the temperature range from 650°C to room temperature.About:
This article is published in Journal of Solid State Chemistry.The article was published on 1990-01-01. It has received 92 citations till now.read more
Citations
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Journal ArticleDOI
Evolution of Oxygen-Vacancy Ordered Crystal Structures in the Perovskite Series SrnFenO3n−1 (n=2, 4, 8, and ∞), and the Relationship to Electronic and Magnetic Properties
Jason P. Hodges,S. Short,James D. Jorgensen,X. Xiong,Bogdan Dabrowski,S.M. Mini,C. W. Kimball +6 more
TL;DR: In this article, the authors used time-of-flight neutron powder diffraction to determine the correct crystal structures for Sr4Fe4O11 (orthorhombic, space group Cmmm, a=10.974(1) A, b=7.702(1), and c=5.473(1)-A) and Sr8Fe8O23 (tetragonal, I4/mmm) through comparison of the goodness of fit for Rietveld refinements of candidate models and bond-length distributions.
Journal ArticleDOI
Synthesis and characterization of Mo-doped SrFeO3−δ as cathode materials for solid oxide fuel cells
Guoliang Xiao,Qiang Liu,Siwei Wang,Vasileios Komvokis,Michael D. Amiridis,Andreas Heyden,Shuguo Ma,Fanglin Chen +7 more
TL;DR: In this paper, Mo-doped perovskites were used as new cathode materials for solid oxide fuel cells (SOFCs) in a microwave-assisted combustion method.
Journal ArticleDOI
Structural, dielectric, and magnetic properties of epitaxially grown BaFeO3 thin films on (100) SrTiO3 single-crystal substrates
TL;DR: In this article, single-crystalline films of BaFeO3, which may contain high valent Fe4+ ions, were prepared on (100) SrTiO3 substrates by pulsed laser-beam deposition.
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Ca and In co-doped BaFeO 3−δ as a Cobalt-free Cathode Material for Intermediate-Temperature Solid Oxide Fuel Cells
TL;DR: In this paper, a cobalt-free perovskite was proposed as a promising cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs), and its lattice structure, thermal stability, chemical composition, electrical conductivity, and oxygen reduction reaction (ORR) activity were characterized.
Journal ArticleDOI
Co-free, iron perovskites as cathode materials for intermediate-temperature solid oxide fuel cells
TL;DR: In this paper, a Co-free solid oxide fuel cell (SOFC) based upon Fe mixed oxides was developed, which gave an extraordinary performance in test-cells with H2 as fuel.
References
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Journal ArticleDOI
Electric and Magnetic Properties of the Strontium Ferrates
TL;DR: A series of strontium ferrate compositions ranging from SrFeO2.7 to Stochastic Ferrate 3.0 have been produced by equilibration at oxygen pressures ranging from 0.2 to 855 atm.
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Covalency Criterion for Localized vs Collective Electrons in Oxides with the Perovskite Structure
TL;DR: In this paper, a parametric criterion is developed from physical arguments, and it is used to interpret systematically the magnetic and electric properties of oxides with the perovskite structure.
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Oxygen Evolution on La1 − x Sr x Fe1 − y Co y O 3 Series Oxides
TL;DR: In this article, a perovskite-type oxide with high catalytic activity for the oxygen evolution reaction in alkaline solution was synthesized and was examined as the electrode for the reaction.
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Phase Transformation in Barium Orthoferrate, BaFeO3‐x
TL;DR: The compound BaFeO3-x exists in many forms, the hexagonal phase having a wide range in oxygen content (BaFeO2.63, 2.92), while the other phases have the limited compositions and the distinct structures of perovskite as mentioned in this paper.
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Oxygen evolution on SrFeO3 electrode
TL;DR: In this article, the authors investigated the catalytic activity for the oxygen evolution reaction in the alkaline solution and the acid solution and found that the reaction mechanism and catalytic property are discussed in connection to the band structure of the oxide.