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Synthese et etude de la conductivite anionique des phases du systeme NaF - BiF3

1981; Elsevier BV; Volume: 16; Issue: 9 Linguagem: Inglês

10.1016/0025-5408(81)90293-2

1873-4227

C. Chartier, J. Grannec, J.M. Réau, J. Portier, Paul Hagenmuller,

Inorganic Fluorides and Related Compounds

A definite NaBiF4 phase and a solid solution Na1−xBixF1+2x (0,60 ⩽ x ⩽ 0,70) of fluorite derived type have been obtained at 430°C in the NaF - BiF3 system. Investigation of the electrical properties of these materials shows that Na0,40 Bi0,60 F2,20 is the best anionic conductor of the system, with a conductivity of about 10−3 Ω−1 cm−1 and 100°C and an activation energy of 0,46 e v. The results are discussed in comparison with those previously obtained for the KF - BiF3 and RbF - BiF3 systems.