Molecular Dynamics Simulations of the Local Structures and Transport Coefficients of Molten Alkali Chlorides

作者: Jia Wang , Ze Sun , Guimin Lu , Jianguo Yu

DOI: 10.1021/JP5050332

关键词: Molecular dynamicsInorganic chemistryCrystalIonic conductivityThermal diffusivityViscosityThermodynamicsNegative temperatureIonic bondingThermal conductivityChemistry

摘要: Systematic results from molecular dynamics simulations of molten alkali chlorides (ACl) serials are presented in detail this paper. The effects temperature and cationic size on the structures transport properties salts have been investigated analyzed. local ACl studied via analysis radial distribution functions angular functions. coordination number decreases when melts solid increases as radius increases. Molten LiCl takes a distorted tetrahedral complex microconfiguration, while other tendency to keep original structure corresponding crystal. Temperature has no significant effect ACls. also show that Tosi-Fumi potential predicts positive dependences for self-diffusion coefficients ionic conductivity, negative both viscosity thermal conductivity Ionic diffusivity CsCl. simulation agreement with experimental data available literature.

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