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dc.contributor.authorLemoine, Charly
dc.contributor.authorPetit, Yann
dc.contributor.authorKaraman, Thomas
dc.contributor.authorJahrsengene, Gøril
dc.contributor.authorMartinez Cuellar, Ana Maria
dc.contributor.authorBenayad, Anass
dc.contributor.authorBilly, Emmanuel
dc.date.accessioned2024-12-13T12:48:53Z
dc.date.available2024-12-13T12:48:53Z
dc.date.created2024-10-07T12:36:12Z
dc.date.issued2024
dc.identifier.citationRSC Advances. 2024, 14 (40), 29174-29183.en_US
dc.identifier.issn2046-2069
dc.identifier.urihttps://hdl.handle.net/11250/3169665
dc.description.abstractReducing the number of stages, energy costs and carbon footprint of recycling processes is essential to overcome environmental challenges. The interest in replacing the acids used in traditional hydrometallurgical methods with deep eutectic solvents (DES), which are less toxic and more environmentally friendly, has been growing. The aim of this study is to estimate the potential use of this class of solvents in an ionometallurgical process of leaching and electrodeposition to recover silver as part of the recycling of solar panels, a major challenge of the years to come. In the present work, a circular recycling concept based on an iron redox shuttle was studied to leach and recover silver via electrodeposition. Different DESs were evaluated in combination with a hexahydrated iron(III) chloride oxidizing agent. Ethaline DES has gained significant interest as it can attain a high silver leaching efficiency of 99.9% on crystallized silicon cell scraps at 75 °C. The promising results led to a comprehensive study of limits of this chemical system, focusing on the relation between the concentration of species (iron and water), the interfacial potential of silver (electrochemical measurements), and surface evolution (X-ray photoelectron spectroscopy analysis). Silver leaching was determined as a mixed control mechanism involving chemical and species diffusion dependence. The concentration of iron(III) chloride appeared crucial, determining the kinetic of formation of a poorly soluble AgCl layer. Electrodeposition from leachate highlighted the need to use an oxygen-free atmosphere to produce high-quality silver. Finally, leaching at 75 °C and electrodeposition at 50 °C of silver from crystallized silicon cell scraps were demonstrated using Ethaline (1 : 2) + FeCl3·6H2O (0.12 mol L−1) under an argon atmosphere.en_US
dc.language.isoengen_US
dc.publisherRoyal Society of Chemistryen_US
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/deed.no*
dc.titleCircular recycling concept for silver recovery from photovoltaic cells in Ethaline deep eutectic solventen_US
dc.title.alternativeCircular recycling concept for silver recovery from photovoltaic cells in Ethaline deep eutectic solventen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2024 The Author(s). Published by the Royal Society of Chemistry.en_US
dc.source.pagenumber29174-29183en_US
dc.source.volume14en_US
dc.source.journalRSC Advancesen_US
dc.source.issue40en_US
dc.identifier.doi10.1039/d4ra05135a
dc.identifier.cristin2310090
dc.relation.projectEC/H2020/958223en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse-Ikkekommersiell 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse-Ikkekommersiell 4.0 Internasjonal