Ion Mobility,Phase Transitions,and Ion Conductivity in Alkali Metal Tetrafluoroantimonates(III) MSbF4 (M = Na,K, Rb,Cs) |
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| Authors: | Kavun V Ya Uvarov N F Sergienko V I Zemnukhova L A |
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| Institution: | (1) Institute of Chemistry, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022, Russia;(2) Institute of Solid-State Chemistry and Mineral Processing, Siberian Division, Russian Academy of Sciences, ul. Kutateladze 18, Novosibirsk, 630128, Russia |
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| Abstract: | The internal mobility of fluoride ions and electrophysical characteristics of alkali metal tetrafluoroantimonates(III) (M = Na, K, Rb, and Cs) are studied by 19F NMR and impedance spectroscopies. The types of ion motions in the anionic sublattice of these compounds are determined in the 180-510 K temperature range. The superionic conductivity of the MSbF4 compounds is established above 480 K (  2.9 × 10-2 to 1.3 × 10-4 S/cm). |
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