DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jongmin Q. | ko |
dc.contributor.author | So, Soonyong | ko |
dc.contributor.author | Kim, Hee-Tak | ko |
dc.contributor.author | Choi, Siyoung Q. | ko |
dc.date.accessioned | 2021-03-02T00:50:39Z | - |
dc.date.available | 2021-03-02T00:50:39Z | - |
dc.date.created | 2021-02-18 | - |
dc.date.created | 2021-02-18 | - |
dc.date.issued | 2021-01 | - |
dc.identifier.citation | ACS ENERGY LETTERS, v.6, no.1, pp.184 - 192 | - |
dc.identifier.issn | 2380-8195 | - |
dc.identifier.uri | http://hdl.handle.net/10203/281078 | - |
dc.description.abstract | In vanadium redox flow batteries (VRFBs), a perfluorinated sulfonic acid (PFSA) ionomer membrane plays a crucial role in transporting ions through hydrophilic channels. However, its randomly interconnected channels with relatively large size in a hydrated state cause low proton/vanadium ion selectivity, imposing a limitation in enhancing performance of VRFB. Herein, we develop an ultrathin PFSA membrane of highly aligned ion channels with reduced size, by molecular arrangement on the air/water interface. Well-ordered ion channels dramatically suppress the vanadium ion crossover, enhancing 500-fold in the ion selectivity compared to conventional PFSA membranes. The molecularly controlled ultrathin PFSA membranes exhibit stable cell performance on a porous support over various current densities and long-term cycles (800 cycles), exceeding the energy efficiency of Nafion 211 (73%) at 200 mA/cm(2). Highly ordered ultrathin PFSA membranes with high ion selectivity could offer a practically applicable low-cost, yet high-performance membrane for VRFBs. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Highly Ordered Ultrathin Perfluorinated Sulfonic Acid Ionomer Membranes for Vanadium Redox Flow Battery | - |
dc.type | Article | - |
dc.identifier.wosid | 000609250200023 | - |
dc.identifier.scopusid | 2-s2.0-85098954825 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 184 | - |
dc.citation.endingpage | 192 | - |
dc.citation.publicationname | ACS ENERGY LETTERS | - |
dc.identifier.doi | 10.1021/acsenergylett.0c02089 | - |
dc.contributor.localauthor | Kim, Hee-Tak | - |
dc.contributor.localauthor | Choi, Siyoung Q. | - |
dc.contributor.nonIdAuthor | So, Soonyong | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | NAFION | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | ION | - |
dc.subject.keywordPlus | MECHANISMS | - |
dc.subject.keywordPlus | MONOLAYERS | - |
dc.subject.keywordPlus | SCATTERING | - |
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