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Liquid crystalline electrolytes derived from the 1,12-disubstituted [closo-CB11H12]– anion

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cris.lastimport.scopus2024-02-12T20:06:54Z
dc.abstract.enA new approach to anisotropic liquid electrolytes is explored. Thus, a non-ionic liquid crystalline host exhibiting SmC and N phases is doped with a lithium salt containing an anion structurally similar to the host and derived from the weakly-nucleophilic [closo-CB11H12]– cluster. The resulting unaligned 5, 10, and 15 mol% solutions of the lithium salt in the host were investigated by optical, thermal, powder XRD and impedance spectroscopy methods in a broad temperature range. The results showed that the increasing concentration of the ionic additives essentially does not affect the mesophase stability, but expands the lamellar SmA phase possessing ion conducting channels. At the same time ionic conductivity, σ, monotonically increases from 10-8 to 10-4 S cm−1 with increasing temperature (20–120 °C) and with increasing Li+ ion concentration. The Arrhenius analysis of the conductivity data revealed progressively decreasing activation energy EaIC from crystalline (∼102 kJ mol−1), to SmA (∼70 kJ mol−1) and to nematic (∼30 kJ mol−1) phases. The electrochemical stability window of the 15 mol% electrolyte was determined as 1.3–4.6 V vs Li metal anode.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorPociecha, Damian
dc.contributor.authorKaszyński, Piotr
dc.contributor.authorRzeszotarska, Edyta
dc.contributor.authorJacob, Litwin
dc.contributor.authorGuschlbauer, Jannick
dc.contributor.authorNiedzicki, Leszek
dc.date.accessioned2024-01-25T05:12:07Z
dc.date.available2024-01-25T05:12:07Z
dc.date.issued2023
dc.description.financeNie dotyczy
dc.description.volume377
dc.identifier.doi10.1016/J.MOLLIQ.2023.121525
dc.identifier.issn0167-7322
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/111328
dc.identifier.weblinkhttps://api.elsevier.com/content/article/PII:S0167732223003288?httpAccept=text/xml
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofJournal of Molecular Liquids
dc.relation.pagesArticle number: 121525
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enCarborane
dc.subject.enIonic conductivity
dc.subject.enIonic liquid crystals
dc.subject.enSmectic phase
dc.titleLiquid crystalline electrolytes derived from the 1,12-disubstituted [closo-CB11H12]– anion
dc.typeJournalArticle
dspace.entity.typePublication