Abstract
TeO 2 forms stable glasses with Li 2O and LiF in a large range of compositions (from 0.45 to 0.9 in molar ratio of TeO 2). The ionic conductivity of these glasses is measured as a function of temperature and chemical composition by the complex impedance method (frequency range: 10 −2 −10 4 Hz, temperature range: 100°C− T g_. A parallel study by 7Li- and 19F-NMR spectroscopy allows identification of Li + ions as the carriers responsible for the ionic conductivity of these solids. From the second moment of NMR signals, two different distributions of lithium are proposed: one in which Li + ions are dispersed in Li 2OTeO 2 glasses and another one, in which Li + and F − ions are associated in the network of LiFTeO 2 glasses. These distributions are correlated with ionic conductivity results.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
