Enhanced electrical properties in BaSrFe2O6−δ (δ = 0.5): A disordered defect-perovskite
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TLDR
The effect of defect-order and oxygen stoichiometry on electrical properties of oxygen-deficient perovskites has been demonstrated through the synthesis of BaSrFe2O6−δ (δ = 0.5) as discussed by the authors.About:
This article is published in Polyhedron.The article was published on 2019-07-15 and is currently open access. It has received 7 citations till now. The article focuses on the topics: Neutron diffraction & Perovskite (structure).read more
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Pseudocapacitive Energy Storage and Electrocatalytic Hydrogen-Evolution Activity of Defect-Ordered Perovskites SrxCa3–xGaMn2O8 (x = 0 and 1)
TL;DR: The diverse range of possible arrangements of oxygen vacancies in oxygen-deficient perovskites results in a variety of structure types and fascinating electrochemical properties as mentioned in this paper, which can be found in the literature.
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First-principles calculation of oxygen vacancy effects on the magnetic properties of the perovskite SrNiO 3
Eunsoo Cho,Konstantin Klyukin,Shuai Ning,Shuai Ning,Jiarui Li,Riccardo Comin,Robert J. Green,Robert J. Green,Bilge Yildiz,Caroline A. Ross +9 more
TL;DR: In this article, the electronic and magnetic properties of perovskite nickelates with divalent A-site cations with an oxygen deficiency were studied using density functional theory and ligand holes were predicted.
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Electrocatalytic activity and structural transformation of Ca2Sr2Mn2MO10-δ (M = Fe, Co)
TL;DR: The structural transformation between Ca2Sr2Mn2FeO10-δ and Ca 2Sr 2Mn 2CoO10δ was reported in this paper, where the former material exhibits lower overpotential and greater electrochemically active surface area.
References
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Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
TL;DR: The effective ionic radii of Shannon & Prewitt [Acta Cryst. (1969), B25, 925-945] are revised to include more unusual oxidation states and coordinations as mentioned in this paper.
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EXPGUI, a graphical user interface for GSAS
TL;DR: A description and justification of the EXPGUI program, which implements a graphical user interface and shell for the GSAS single-crystal and Rietveld package using the Tcl/Tk scripting language, is presented.
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Nonstoichiometry and defect structure of the perovskite-type oxides La1−xSrxFeO3−°
TL;DR: In this paper, the defect structure of perovskite-type oxide solid solution La1−xSrxFeO3−δ (x = 0.015) was measured as a function of oxygen partial pressure, PO2, at temperatures up to 1200°C by means of the thermogravimetric method.
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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.
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Ca2Mn2O5 as Oxygen-Deficient Perovskite Electrocatalyst for Oxygen Evolution Reaction
TL;DR: It is demonstrated that oxygen-deficient perovskite, A2B2O5, is a new class of high performance electrocatalyst for those reactions that involve active oxygen intermediates, such as reduction of oxygen and OER in water splitting.