Abstract
Many standard thermodynamic data in the binary system Li–Sb can be found in literature; however, they are often derived from electrochemical measurements taken at higher temperatures. The uncertainties associated with the extrapolation of these high-temperature data to room temperature are, however, inherently large. Therefore, a comprehensive investigation of the thermodynamic properties in the Li–Sb system was conducted in this work to generate more reliable data. Four different experimental techniques were used for the investigations. The heat capacities for both binary compounds, Li2Sb and Li3Sb, were measured for the very first time. In addition, the enthalpies of formation for both compounds were determined by drop solution and direct reaction calorimetry. Furthermore, Knudsen effusion mass spectrometry was performed to measure partial enthalpies and activities of Sb.
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Acknowledgements
This work was supported by the German Research Foundation “Deutsche Forschungsgemeinschaft (DFG)” within the DFG priority program SPP1473 “WeNDeLIB.” V. Motalov thanks the Ministry of Education and Science of the Russian Federation (Project No. 4.3232.2017/PP).
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Beutl, A., Henriques, D., Motalov, V. et al. A thermodynamic investigation of the Li–Sb system. J Therm Anal Calorim 131, 2673–2686 (2018). https://doi.org/10.1007/s10973-017-6795-1
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DOI: https://doi.org/10.1007/s10973-017-6795-1