119Sn Mössbauer spectroscopy: a powerful tool to unfold the reaction mechanism in advanced electrodes for lithium-ion batteries |
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| Authors: | Ricardo Alcántara Pedro Lavela Gregorio Ortiz Inés Rodríguez José L Tirado |
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| Institution: | 1. Laboratorio de Química Inorgánica, Universidad de Córdoba, Edificio C3, Campus de Rabanales, 14071, Córdoba, Spain
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| Abstract: | Cobalt–tin intermetallic compounds with different particle size have been obtained and characterized by using 119Sn Mössbauer spectroscopy as a main tool. The electrochemical behavior of the Co–Sn compounds has been evaluated in lithium test cells. The Lamb–Mössbauer factors for CoSn with different crystallite sizes have been calculated. The results f nano???CoSn(300 K) = 0.19 and f coarse???CoSn(300 K) = 0.55 are obtained. Nano-CoSn exhibits larger capacity to react with lithium than coarse-CoSn. |
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