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The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents

The temperature dependence of the density, dynamic viscosity and ionic conductivity of several deep eutectic solvents (DESs) containing ammonium-based salts and hydrogen bond donvnors (polyol type) are investigated. The temperature-dependent electrolyte viscosity as a function of molar conductivity...

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Main Authors: Bahadori, L., Chakrabarti, M.H., Manan, N.S.A., Hashim, M.A., Mjalli, F.S., AlNashef, I.M., Brandon, N.
Format: Article
Published: Public Library of Science 2015
Subjects:
Q Science (General)
T Technology (General)
Online Access:http://eprints.um.edu.my/16229/
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spelling my.um.eprints.162292017-07-05T01:22:08Z http://eprints.um.edu.my/16229/ The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents Bahadori, L. Chakrabarti, M.H. Manan, N.S.A. Hashim, M.A. Mjalli, F.S. AlNashef, I.M. Brandon, N. Q Science (General) T Technology (General) The temperature dependence of the density, dynamic viscosity and ionic conductivity of several deep eutectic solvents (DESs) containing ammonium-based salts and hydrogen bond donvnors (polyol type) are investigated. The temperature-dependent electrolyte viscosity as a function of molar conductivity is correlated by means of Walden's rule. The oxidation of ferrocene (Fc/Fc(+)) and reduction of cobaltocenium (Cc(+)/Cc) at different temperatures are studied by cyclic voltammetry and potential-step chronoamperometry in DESs. For most DESs, chronoamperometric transients are demonstrated to fit an Arrhenius-type relation to give activation energies for the diffusion of redox couples at different temperatures. The temperature dependence of the measured conductivities of DES1 and DES2 are better correlated with the Vogel-Tamman-Fulcher equation. The kinetics of the Fc/Fc(+) and Cc(+)/Cc electrochemical systems have been investigated over a temperature range from 298 to 338 K. The heterogeneous electron transfer rate constant is then calculated at different temperatures by means of a logarithmic analysis. The glycerol-based DES (DES5) appears suitable for further testing in electrochemical energy storage devices. Public Library of Science 2015 Article PeerReviewed Bahadori, L. and Chakrabarti, M.H. and Manan, N.S.A. and Hashim, M.A. and Mjalli, F.S. and AlNashef, I.M. and Brandon, N. (2015) The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents. PLoS ONE, 10 (12). ISSN 1932-6203 DOI: 10.1371/journal.pone.0144235
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
T Technology (General)
spellingShingle Q Science (General)
T Technology (General)
Bahadori, L.
Chakrabarti, M.H.
Manan, N.S.A.
Hashim, M.A.
Mjalli, F.S.
AlNashef, I.M.
Brandon, N.
The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents
description The temperature dependence of the density, dynamic viscosity and ionic conductivity of several deep eutectic solvents (DESs) containing ammonium-based salts and hydrogen bond donvnors (polyol type) are investigated. The temperature-dependent electrolyte viscosity as a function of molar conductivity is correlated by means of Walden's rule. The oxidation of ferrocene (Fc/Fc(+)) and reduction of cobaltocenium (Cc(+)/Cc) at different temperatures are studied by cyclic voltammetry and potential-step chronoamperometry in DESs. For most DESs, chronoamperometric transients are demonstrated to fit an Arrhenius-type relation to give activation energies for the diffusion of redox couples at different temperatures. The temperature dependence of the measured conductivities of DES1 and DES2 are better correlated with the Vogel-Tamman-Fulcher equation. The kinetics of the Fc/Fc(+) and Cc(+)/Cc electrochemical systems have been investigated over a temperature range from 298 to 338 K. The heterogeneous electron transfer rate constant is then calculated at different temperatures by means of a logarithmic analysis. The glycerol-based DES (DES5) appears suitable for further testing in electrochemical energy storage devices.
format Article
author Bahadori, L.
Chakrabarti, M.H.
Manan, N.S.A.
Hashim, M.A.
Mjalli, F.S.
AlNashef, I.M.
Brandon, N.
author_facet Bahadori, L.
Chakrabarti, M.H.
Manan, N.S.A.
Hashim, M.A.
Mjalli, F.S.
AlNashef, I.M.
Brandon, N.
author_sort Bahadori, L.
title The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents
title_short The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents
title_full The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents
title_fullStr The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents
title_full_unstemmed The Effect of Temperature on Kinetics and Diffusion Coefficients of Metallocene Derivatives in Polyol-Based Deep Eutectic Solvents
title_sort effect of temperature on kinetics and diffusion coefficients of metallocene derivatives in polyol-based deep eutectic solvents
publisher Public Library of Science
publishDate 2015
url http://eprints.um.edu.my/16229/
_version_ 1643690227088228352
score 13.211869

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