Browsing by Advisor M. T. Ramírez-Silva

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  • Authors: W. Sánchez-Ortiz;  Advisor: J. Aldana-González; Tu Le Manh; M. Romero-Romo; I. Mejía-Caballero; M. T. Ramírez-Silva; E. M. Arce-Estrada; V. Mugica-Álvarez; M. Palomar-Pardavé;  Co-Author: - (2021)

    It is shown for the first time that the deep eutectic solvent, DES, formed by acetylcholine chloride and urea can be successfully used for Ag recovery from the cathode powder of spent silver oxide batteries. This DES performs two important functions namely, as selective leaching liquor to extract Ag(I) ions from the remaining Ag2O, leaving intact the metallic Ag in the solid phase, and as electrolytic bath for silver electrodeposition onto a glassy carbon electrode or graphite. Using potentiodynamic and potentiostatic electrochemical measurements, it was possible to quantify both: the Ag(I) leaching rate and the concentration of Ag(I) ions leached after 24 h. From this value, it was p...