Structural characterisation of REBaCo2O6−δ phases (RE=Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho)

Anderson, Paul S.; Kirk, Caroline A.; Knudsen, Jesper; Reaney, Ian M.; West, Anthony R.

doi:10.1016/j.solidstatesciences.2005.03.004

Cited by 85 publications

(58 citation statements)

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“…An unique set of transport, thermomechanical and interfacial properties of perovskite-like LnBaCo 2 O 5+δ (Ln¼Pr-Ho, Y) makes it possible to use these materials for fuel cell electrodes and oxygenpermeable membranes [1][2][3][4] and attracts significant attention during last years [5][6][7][8][9]. Due to the large difference between the ionic radii of Ln 3+ and Ba 2+ , these cations are located in separate layers of the LnBaCo 2 O 5+δ structure, leading to doubling of c-parameter in the resultant tetragonal unit cell (a p Â a p Â 2a p ).…”

Section: Introductionmentioning

confidence: 99%

Synthesis, crystal structure and properties of SmBaCo2−xFexO5+δ

Volkova

Gavrilova

Черепанов

et al. 2013

Journal of Solid State Chemistry

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Section: Introductionmentioning

confidence: 99%

Synthesis, crystal structure and properties of SmBaCo2−xFexO5+δ

Volkova

Gavrilova

Черепанов

et al. 2013

Journal of Solid State Chemistry

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“…3 The oxygen-deficient ordered double perovskites RBaM 2 O 5+␦ ͑where R is a rare earth element and M =Mn,Fe,Co͒ have been the subject of a number of investigations because of their wide ranges of stoichiometry and concomitant variable transition metal oxidation states. The low temperature structural properties of these compounds have been studied in detail [4][5][6][7][8] and some data are available on their high temperature oxygen chemistry. [9][10][11][12] Recently, Streule et al 8 have measured high rates of oxygen uptake in GdBaB 2 O 5+x ͑B=Mn,Co͒ together with clear indications that the ordered vacancies are important to this process.…”

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confidence: 99%

Epitaxial behavior and transport properties of PrBaCo2O5 thin films on (001) SrTiO3

Yuan

Liu

Chen

et al. 2007

Applied Physics Letters

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“…When considering systems Ln-BaCo-O much attention is paid to bilayer ordered perovskites LnBaCo 2 O 5+d [114][115][116][117][118][119][120][121]. Unlike iron-and manganese-containing systems, the compounds with similar structure are thermodynamically stable at atmospheric pressure.…”

Section: № 4 | 2015 Chimica Techno Actamentioning

confidence: 99%

Phase equilibria and thermodynamic properties of oxide systems on the basis of rare earth, alkaline earth and 3d-transition (Mn, Fe, Co) metals. A short overview of

et al. 2015

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Phase equilibria and thermodynamic properties of oxide systems on the basis of rare earth, alkaline earth and 3d-transition (Mn, Fe, Co) metals. A short overview of.Review is dedicated studies of phase equilibria in the systems based on rare earth elements and 3d transition metals. It's highlighted several structural families of these compounds and is shown that many were found interesting properties for practical application, such as high conductivity up to the superconducting state, magnetic properties, catalytic activity of the processes of afterburning of exhaust gases, the high mobility in the oxygen sublattice and more.Keywords: phase equilibrium; manganites; isobaric-isothermal diagrams; solid solutions © Cherepanov V. A., Gavrilova L. Ya., Volkova N. E., Urusova A. S., Aksenova T. V., Kiselev E., 2015 IntroductionThe studies of phase equilibria in the systems based on rare earth elements and 3d transition metals and thermodynamic parameters of the oxide phases formed in these systems was initiated by Vladimir Mikhailovich Zhukovsky in 1977 under the direct supervision of Alexander Nikolaevich Petrov, as the development of contractual issues, conducted with an experienced company GIREDMET. The works on the study of the system Sm-Co-O and properties of oxide phases formed in system were then extended to other rare earth elements (REE) [1][2][3][4][5][6][7][8] and 3d transition metals [9][10][11][12][13]. A characteristic feature of these systems is the formation of oxide phases with perovskite structure AVO 3 and related. The partial substitution of rare earth elements in alkaline earth metals (AEM) leads to significant change of properties and they found a wide range of interesting for practical applications of the properties such as high conductivity up to the superconducting state, magnetic properties, catalytic activity of the processes of afterburning of exhaust gases and a variety of redox reactions, high mobility in the oxygen sublattice and more. In addition, partial substitution in the A-sublattice under constant 3d-cation in the systems Ln-T-O allows to stabilize the structure, which Cherepanov V. A., Gavrilova L. Ya., Volkova N. E., Urusova A. S., Aksenova T. V., Kiselev E. in the given conditions (temperature and oxygen pressure) are thermodynamically unstable. Therefore, further development of investigations of phase equilibria and thermodynamic stability of complex oxides were targeting the systems Ln-M-T-O (where Ln = REE, M = Ca, Sr, Ba; T = Mn, Fe, Co, Ni, Cu). When a certain percentage of similarity (in all possible formation of a phase with perovskite structure LnTO 3±d ) these systems still have a noticeable and distinctive features depending on the nature of the components. Phase equilibrium in systems with T = MnThe significant difference of perovskite phases in the manganese-containing systems Ln-Mn-O is that the oxygen content in them exceeds the stoichiometric air LnMnO 3+d . In fact, the oxygen sublattice is complete and the non-stoichiometry is realized by vacancy disordering ...

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Structural characterisation of REBaCo2O6−δ phases (RE=Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho)

Cited by 85 publications

References 5 publications

Synthesis, crystal structure and properties of SmBaCo2−xFexO5+δ

Synthesis, crystal structure and properties of SmBaCo2−xFexO5+δ

Epitaxial behavior and transport properties of PrBaCo2O5 thin films on (001) SrTiO3

Phase equilibria and thermodynamic properties of oxide systems on the basis of rare earth, alkaline earth and 3d-transition (Mn, Fe, Co) metals. A short overview of

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