alpha-Na3M2(PO4)(3) (M = Ti, Fe) : Absolute Cationic Ordering in NASICON-Type Phases - Archive ouverte HAL Access content directly
Journal Articles Journal of the American Chemical Society Year : 2011

alpha-Na3M2(PO4)(3) (M = Ti, Fe) : Absolute Cationic Ordering in NASICON-Type Phases

Abstract

The structure of the fully ordered R-Na3Ti2(PO4)3 NASICON compound was elucidated using highquality single-crystal data. The cation/vacancy distribution forms a homogeneous 3D arrangement and could represent the absolute cationic ordering available in the full Na3M2(PO4)3 series, as verified for M = Fe. For M = Ti, the reversible Rfγ transition was observed at 85 C, leading to the standard disordered R3c γ model. Through JPDF analysis, the most probable Na+ zigzag M(2) M(1) diffusion scheme was directly deduced using our accurate crystallographic data.
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hal-00822469 , version 1 (14-05-2013)

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Houria Kabbour, Daniel Coillot, Marie Colmont, Christian Masquelier, Olivier Mentré. alpha-Na3M2(PO4)(3) (M = Ti, Fe) : Absolute Cationic Ordering in NASICON-Type Phases. Journal of the American Chemical Society, 2011, 133, pp.11900-11903. ⟨10.1021/ja204321y⟩. ⟨hal-00822469⟩
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