TY  - JOUR
AU  - Bucko, M.
AU  - Roy, S.
AU  - Valverde-Armas, P.
AU  - Onjia, Antonije
AU  - Bastos, Alexandre C.
AU  - Bajat, Jelena
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3900
AB  - This work investigates the electrochemical role of water in the research of deep eutectic solvent (DES) based on urea and choline chloride. The motivation comes from the growing use of this DES, and on reports where a characteristic voltammetric cathodic pre-wave is observed. However, there has been no direct study to verify if such interpretation of the pre-wave is appropriate. In this regard, cyclic voltammetry has been used in this paper to interrogate the reactions inducing the appearance of the pre-wave. These experiments have been carried out using reline (the eutectic mixture of urea and choline chloride) melts containing different amounts of water, compounds which can be incorporated as impurities from air, or as decomposition products of reline. The analyses showed that a pre-wave in voltammograms in reline originates from water electroreduction accompanied with a subsequent choline hydroxide formation. In this sense, reline behaves like a typical mixture of organic solvent + alkali cation salt + water. The voltammetric signal depends on water content in reline. Importantly, this offers a possibility for in-situ electrochemical determination of water content in reline, provided that a calibration curve is constructed.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Voltammetric Response of Water in Deep Eutectic Solvent Based on Choline Chloride and Urea
EP  - H1065
IS  - 16
SP  - H1059
VL  - 165
DO  - 10.1149/2.0921816jes
ER  - 

@article{
author = "Bucko, M. and Roy, S. and Valverde-Armas, P. and Onjia, Antonije and Bastos, Alexandre C. and Bajat, Jelena",
year = "2018",
abstract = "This work investigates the electrochemical role of water in the research of deep eutectic solvent (DES) based on urea and choline chloride. The motivation comes from the growing use of this DES, and on reports where a characteristic voltammetric cathodic pre-wave is observed. However, there has been no direct study to verify if such interpretation of the pre-wave is appropriate. In this regard, cyclic voltammetry has been used in this paper to interrogate the reactions inducing the appearance of the pre-wave. These experiments have been carried out using reline (the eutectic mixture of urea and choline chloride) melts containing different amounts of water, compounds which can be incorporated as impurities from air, or as decomposition products of reline. The analyses showed that a pre-wave in voltammograms in reline originates from water electroreduction accompanied with a subsequent choline hydroxide formation. In this sense, reline behaves like a typical mixture of organic solvent + alkali cation salt + water. The voltammetric signal depends on water content in reline. Importantly, this offers a possibility for in-situ electrochemical determination of water content in reline, provided that a calibration curve is constructed.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Voltammetric Response of Water in Deep Eutectic Solvent Based on Choline Chloride and Urea",
pages = "H1065-H1059",
number = "16",
volume = "165",
doi = "10.1149/2.0921816jes"
}

Bucko, M., Roy, S., Valverde-Armas, P., Onjia, A., Bastos, A. C.,& Bajat, J.. (2018). Voltammetric Response of Water in Deep Eutectic Solvent Based on Choline Chloride and Urea. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 165(16), H1059-H1065.
https://doi.org/10.1149/2.0921816jes

Bucko M, Roy S, Valverde-Armas P, Onjia A, Bastos AC, Bajat J. Voltammetric Response of Water in Deep Eutectic Solvent Based on Choline Chloride and Urea. in Journal of the Electrochemical Society. 2018;165(16):H1059-H1065.
doi:10.1149/2.0921816jes .

Bucko, M., Roy, S., Valverde-Armas, P., Onjia, Antonije, Bastos, Alexandre C., Bajat, Jelena, "Voltammetric Response of Water in Deep Eutectic Solvent Based on Choline Chloride and Urea" in Journal of the Electrochemical Society, 165, no. 16 (2018):H1059-H1065,
https://doi.org/10.1149/2.0921816jes . .