Polybenzimidazole membranes functionalised with 1-methyl-2-mesitylbenzimidazolium ions via a hexyl linker for use in vanadium flow batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Yona | - |
dc.contributor.author | Kim, Sangwon | - |
dc.contributor.author | Maljusch, Artjom | - |
dc.contributor.author | Conradi, Oliver | - |
dc.contributor.author | Kim, Hyoung-Juhn | - |
dc.contributor.author | Jang, Jong Hyun | - |
dc.contributor.author | Han, Jonghee | - |
dc.contributor.author | Kim, Jihyun | - |
dc.contributor.author | Henkensmeier, Dirk | - |
dc.date.accessioned | 2021-09-01T13:48:22Z | - |
dc.date.available | 2021-09-01T13:48:22Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2019-06-12 | - |
dc.identifier.issn | 0032-3861 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/64779 | - |
dc.description.abstract | 1-(6-bromohexyl)-3-methyl-2-(2,4,6-trimethylphenyl)-2H-benzimidazolium bromide was synthesised and grafted onto polybenzimidazole (PBI). The highest obtained degrees of functionalisation were 0.7 and 1.1 ionic groups per repeat unit, corresponding to ion exchange capacities of 1.25 and 1.55 mmol chloride/g. While the latter material had much reduced tensile strength and Young's modulus, the material with a lower degree of functionalisation showed properties similar to PBI and was therefore further investigated. X-ray scattering showed that the functional group reduced the crystallinity. Conductivity was in the range of 2-3 mS cm(-1,) but increased to 23 mS cm(-1) after doping in 2 M sulfuric acid, 2-4 times higher than for doped PBI. Permeability for VO2+ ions was 0.8 x 10(-12) m(2) s(-1). In the vanadium redox flow battery, the grafted PBI showed higher coulomb and voltage efficiency than PBI, and therefore also higher energy efficiency. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject | ANION-EXCHANGE MEMBRANES | - |
dc.subject | BLEND MEMBRANES | - |
dc.subject | PBI-OO | - |
dc.subject | STABILITY | - |
dc.subject | EFFICIENCY | - |
dc.title | Polybenzimidazole membranes functionalised with 1-methyl-2-mesitylbenzimidazolium ions via a hexyl linker for use in vanadium flow batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Jihyun | - |
dc.identifier.doi | 10.1016/j.polymer.2019.04.048 | - |
dc.identifier.scopusid | 2-s2.0-85065853290 | - |
dc.identifier.wosid | 000469028200026 | - |
dc.identifier.bibliographicCitation | POLYMER, v.174, pp.210 - 217 | - |
dc.relation.isPartOf | POLYMER | - |
dc.citation.title | POLYMER | - |
dc.citation.volume | 174 | - |
dc.citation.startPage | 210 | - |
dc.citation.endPage | 217 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | ANION-EXCHANGE MEMBRANES | - |
dc.subject.keywordPlus | BLEND MEMBRANES | - |
dc.subject.keywordPlus | PBI-OO | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordAuthor | Vanadium redox flow battery (VRFB) | - |
dc.subject.keywordAuthor | Polybenzimidazole | - |
dc.subject.keywordAuthor | 2-Mesityl benzimidazolium | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.