Could you advise some literature on its chemical and thermal stability?
Olivine-type NaFePO4 and Na0.7FePO4 were synthesized making use of sodium batteries. Both atomic structures were obtained via Rietveld refinements of the resulting powders and were proven to be stable up to around 450°C. Olivine NaFePO4 transforms into the high-temperature stable maricite phase. Significant differences are found with LiFePO4.
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Reference:
Structure and Stability of Sodium Intercalated Phases in Olivine FePO4
P. Moreau *, D. Guyomard , J. Gaubicher and F. Boucher
Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes cedex 3, France
Chem. Mater., 2010, 22 (14), pp 4126–4128
DOI: 10.1021/cm101377h
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