Journal
ARABIAN JOURNAL OF CHEMISTRY
Volume 15, Issue 1, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.arabjc.2021.103470
Keywords
Halloysite; Ionic liquids; Interaction; Ionic conductivity; Ionogels; Rheology
Categories
Funding
- Russian Foundation for Basic Research [18-29-12012 mk]
- State Assignment of the Ministry of Science and Higher Education of the Russian Federation [AAAA-A21-121011490059-5]
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This study investigates the rheological properties and ionic conductivity of ionogels based on halloysite nanoclay and ionic liquids, revealing the influence of IL cation structural characteristics on the properties of the gels and establishing correlations between the conductivity of ionogels and pure ionic liquids.
Ionogels are hybrid ion-conducting materials consisting of ionic liquids stabilized by inorganic or polymer fillers and having good prospects for application in solid-state and flexible electronics and energy storage devices. The work presents the results of studying the rheological properties and ionic conductivity of a series of ionogels based on halloysite nanoclay and bis(tri fluoromethylsulfonyl)imide ionic liquids with EMIm+, BMIm+, BM2Im+, BMPyrr+, BMPip+ and MOc3Am+ cations and content of the dispersion phase of 43-48%. The obtained values are compared with the analogous characteristics of bulk ionic liquids. It has been established that the IL cation structural characteristics affect the viscoplastic properties of ionogels subjected to uniaxial quasistatic compression (20 degrees C), ionic conductivity and structural resistance coefficient of an inorganic filler (from -20 to +80 degrees C). Additive models of conductivity in binary systems are applied to obtain correlations linking ionic conductivity of ionogels with that of pure ionic liquids. (c) 2021 The Author(s). Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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