Highly conducting lyotropic liquid crystalline mesophases of pluronics (P65, P85, P103, and P123) and hydrated lithium salts (LiCl and LiNO3)

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dc.citation.epage6945en_US
dc.citation.issueNumber23en_US
dc.citation.spage6938en_US
dc.citation.volumeNumber30en_US
dc.contributor.authorBarım, G.en_US
dc.contributor.authorAlbayrak, C.en_US
dc.contributor.authorYilmaz, E.en_US
dc.contributor.authorDag, Ö.en_US
dc.date.accessioned2015-07-28T12:02:07Z
dc.date.available2015-07-28T12:02:07Z
dc.date.issued2014en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractDemand for ionically conducting materials, as membranes and electrodes, is one of the driving forces of current research in chemistry, physics, and engineering. The lithium ion is a key element of these materials, and its assembly into nanostructures and mesophases is important for the membrane and electrode technologies. In this investigation, we show that hydrated lithium salts (such as LiCl·xH2O and LiNO3· xH2O, x is as low as 1.5 and 3.0, respectively) and pluronics (triblock copolymer such as PX where X is 65, 85, 103, and 123) form lyotropic liquid crystalline mesophases (LLCM), denoted as LiY·xH2O-PX-n (Y is Cl− or NO3 −, and n is the salt/PX mole ratio). The structure of the mesophase is hexagonal over a broad salt concentration and transforms to a cubic mesophase and then to disordered gel phase with an increasing salt content of the mixtures. The mesophases are unstable at low salt contents and undergo a phase separation into pure pluronics and salt-rich LLCMs. The salt content of the ordered mesophase can be as high as 30 mole ratio for each pluronic, which is a record high for any known salted phases. The mesophases also display high ac ionic conductivities, reaching up to 21 mS/cm at room temperature (RT), and are sensitive to the water content. These mesophases can be useful as ion-conducting membranes and can be used as media for the synthesis of lithium-containing nanoporous materials.en_US
dc.description.provenanceMade available in DSpace on 2015-07-28T12:02:07Z (GMT). No. of bitstreams: 1 8117.pdf: 4559323 bytes, checksum: d4551a9ef93bba5609f902a4fea483d5 (MD5)en
dc.identifier.doi10.1021/la5006105en_US
dc.identifier.issn0743-7463
dc.identifier.urihttp://hdl.handle.net/11693/12597
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/la5006105en_US
dc.source.titleLangmuiren_US
dc.subjectGlycol Dodecyl Etheren_US
dc.subjectPhase-behavioren_US
dc.subjectIon Batteriesen_US
dc.subjectPolymer Electrolytesen_US
dc.subjectNonionic Surfactantsen_US
dc.subjectNegative-electrodeen_US
dc.subjectMicellar-solutionsen_US
dc.subjectTransitionen_US
dc.subjectCopolymeren_US
dc.titleHighly conducting lyotropic liquid crystalline mesophases of pluronics (P65, P85, P103, and P123) and hydrated lithium salts (LiCl and LiNO3)en_US
dc.typeArticleen_US

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