Microstructure of LiXPO4 (X = Ni, Co, Mn) prepared by solid state chemical reaction

Christian Julien (1) , A. Ait Salah , F. Gendron (1) , Jean-François Morhange (1) , A. Mauger (2) , C. V. Ramana

1 INSP - Institut des Nanosciences de Paris
2 Département MIPPU, CNRS, Campus Boucicaut

This paper reports the microstructure of LiXPO4 (X = Ni, Co, Mn) materials prepared by solid state chemical reaction. The variation in microstructure of these phospho-olivines is mainly due to a difference in the XO6 cationic octahedral environment, which is discussed using a molecular vibration model to elucidate the bonding between various structural units. A direct relationship is established between the vibrational frequencies and the second ionisation potential of the metal (X) in LiXPO4. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Mots clés: phospho-olivine; LiXPO4 (X = Mn; Fe; Co; Ni); microstructure; chemical bonding; Raman spectroscopy

Domaines: Matière Condensée [cond-mat]

Christian Julien, A. Ait Salah, F. Gendron, Jean-François Morhange, A. Mauger, et al.. Microstructure of LiXPO4 (X = Ni, Co, Mn) prepared by solid state chemical reaction. Scripta Materialia, 2006, 55 (12), pp.1179-1182. ⟨10.1016/j.scriptamat.2006.07.011⟩. ⟨hal-01293304⟩