| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Corbel, Gwenaël
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2019Copper-Substituted NiTiO3 Ilmenite-Type Materials for Oxygen Evolution Reactioncitations
- 2019The 1D A7B7O30 crystal lattice : an extreme case of oxygenation/slicing of 3D ABO3 perovskite
- 2014Thermodynamic stability of La2Mo2−yWyO9, La2Mo2−yWyO8.96+0.02y and La7Mo7(2−y)/2W7y/2O30 (y = 0, 0.5 and 1.0)
- 2012Analysis of the local structure of phosphorus-substituted LAMOX oxide ion conductors
- 2011Selective dry oxidation of the ordered Pt-11.1 at.% v alloy surface evidenced by in situ temperature-controlled X-ray diffractioncitations
- 2011Selective dry oxidation of the ordered Pt–11.1at.% V alloy surface evidenced by in situ temperature-controlled X-ray diffractioncitations
- 2008Complex Effect of Partial Substitution of La3+ by Ca2+ on the Stability of Fast Oxide-Ion Conductor La2Mo2O9citations
- 2005Effects of Partial Substitution of Mo6+ by Cr6+ and W6+ on the Crystal Structure of the Fast Oxide-Ion Conductor La2Mo2O9citations
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article
Analysis of the local structure of phosphorus-substituted LAMOX oxide ion conductors
Abstract
The effect of partial substitution of molybdenum by phosphorus on the global and local structural arrangement of the fast oxide-ion conductor La2Mo2O9 (LAMOX) has been studied by X-ray powder diffraction as well as 139La and 31P solid state NMR. The diffraction patterns show that La2Mo2−yPyO9−y/2 forms a solid solution at low phosphorus concentrations, and that there is a structural phase transition upon increasing phosphorus concentration. This phase transition is also reflected in 139La and 31P NMR spectra. The possibility to excite 31P multiple-quantum coherences of one of the 31P NMR signals gives evidence of an accumulation of phosphorus atoms on neighbouring Mo-type sites already before formation of three-dimensional precipitates. On the basis of our X-ray and NMR results we propose a possible structural arrangement of the compound La2Mo2−yPyO9−y/2 that explains the experimental observations by crystal twinning.