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Journal articles
Diffusion of redox active molecules in deep eutectic solvents
Abstract : Classical electrochemical approaches were evaluated for investigating the basic properties of deep eutectic solvents (DES) with a special focus on the mass transport phenomena and diffusion of charged species in DES. Three classical DES were considered: Reline, Ethaline and choline chloride-lactic acid mixture. Cyclic voltammetries of the ferrocene oxidation and of the ferricyanide reduction, respectively with charge 0 and − 3, exhibit well-defined responses in these media. For all considered DES and redox molecules, diffusion processes govern the mass-transport of the redox molecules from the solution to the electrode. Derived diffusion coefficients were extracted and found to present some inconsistencies with the classical Stokes-Einstein law for homogeneous media. The diffusion coefficients were found to be almost unaffected by the charge present on the diffusing molecules contrarily to observations made for ionic liquids.
Cited literature [34 references]
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01812103
Contributor : Laurent Jonchère <>
Submitted on : Monday, June 11, 2018 - 11:24:57 AM
Last modification on : Tuesday, January 12, 2021 - 4:38:06 PM
Long-term archiving on: : Wednesday, September 12, 2018 - 11:16:16 PM
Contributor : Laurent Jonchère <>
Submitted on : Monday, June 11, 2018 - 11:24:57 AM
Last modification on : Tuesday, January 12, 2021 - 4:38:06 PM
Long-term archiving on: : Wednesday, September 12, 2018 - 11:16:16 PM
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Fryars -Diffusion of redox act...
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