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Effect of carbon dioxide additive on the characteristics of a deep eutectic solvent (DES) electrolyte for non-aqueous redox flow batteries
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Xu, Q., Ji, Y. N., Qin, L.Y., Leung, P. K., Shah, Akeel A., Li, Y. S., Su, H. N. and Li, H. M. (2018) Effect of carbon dioxide additive on the characteristics of a deep eutectic solvent (DES) electrolyte for non-aqueous redox flow batteries. Chemical Physics Letters, 708 . pp. 48-53. doi:10.1016/j.cplett.2018.07.060 ISSN 0009-2614.
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Official URL: http://dx.doi.org/10.1016/j.cplett.2018.07.060
Abstract
The effects of CO2 on physical and electrochemical properties of deep eutectic solvent (DES) containing Fe(II)/Fe(III) redox couple were studied. At 25 °C, the viscosity of the DES decreased from 690.4 cP to 620 cP (10.1% decrease), and the ohmic resistance reduced from 1867 Ω to 1409 Ω (24.5% decrease) with saturated CO2. The magnitude of the changes reduces with the increase of temperature. Moreover, the cyclic voltammetry curve shows that the addition of CO2 has no remarkable influence on the reaction kinetics of redox couple in DES. The results reported here imply that CO2 has positive effects on the physicochemical characteristics of DES, while further studies are needed for being used in a DES electrolyte flow battery.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > Q Science (General) | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Journal or Publication Title: | Chemical Physics Letters | ||||||
Publisher: | Elsevier BV | ||||||
ISSN: | 0009-2614 | ||||||
Official Date: | 16 September 2018 | ||||||
Dates: |
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Volume: | 708 | ||||||
Page Range: | pp. 48-53 | ||||||
DOI: | 10.1016/j.cplett.2018.07.060 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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