S 89 Structure and Transport Properties of Li1- 2xCO1 + xVO4 Lithium Ionic Conductors / I. A. Leonidov, R. F. Samigullina, O. N. Leonidova, B. V. Slobodin, M. V. Patrakeev, O. V. Koryakova // Inorganic Chemistry. - 2000. - Vol. 36, № 9. - P. 942-946 : il. - Bibliogr. : p. 945-946 (10 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СВОЙСТВА ТРАНСПОРТНЫЕ -- ПРОВОДНИКИ ИОННЫЕ -- ШПИНЕЛИ -- ВАНАДАТЫ -- ЛИТИЙ Аннотация: Li 1-x 2xCo 1 + xVO4 (0 < x <= 0.25) spinel solid solutions were synthesized and characterized by x-ray diffraction and IR spectroscopy. The materials were found to have a cubic structure in the composition range 0 < x <= 0.1 and an orthorhombic structure for x > 0.1. The observed lattice distortions were shown to correlate with Co content. The conductivity of the solid solutions was measured as a function of temperature and oxygen partial pressure. The ionic and electronic (n and p) conductivities were determined. The conduction in the solid solutions was shown to be dominated by Li + ions Полный текст |