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In operando visualization of redox flow battery in membrane-free microfluidic platform

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dc.contributor.authorPark, Hyungjoo-
dc.contributor.authorKwon, Giyun-
dc.contributor.authorLee, Hyomin-
dc.contributor.authorLee, Kyunam-
dc.contributor.authorPark, Soo Young-
dc.contributor.authorKwon, Ji Eon-
dc.contributor.authorKisuk Kang-
dc.contributor.authorKim, Sung Jae-
dc.date.accessioned2022-07-29T07:21:03Z-
dc.date.available2022-07-29T07:21:03Z-
dc.date.created2022-03-07-
dc.date.issued2022-03-
dc.identifier.issn0027-8424-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/11987-
dc.description.abstractCopyright © 2022 the Author(s). Published by PNAS.Redox flow batteries (RFBs) are attractive large-scale energy storage techniques, achieving remarkable progress in performance enhancement for the last decades. Nevertheless, an in-depth understanding of the reaction mechanism still remains challenging due to its unique operation mechanism, where electrochemistry and hydrodynamics simultaneously govern battery performance. Thus, to elucidate the precise reactions occurring in RFB systems, an appropriate analysis technique that enables the real-time observation of electrokinetic phenomena is indispensable. Herein, we report in operando visualization and analytical study of RFBs by employing a membrane-free microfluidic platform, that is, a membrane-free microfluidic RFB. Using this platform, the electrokinetic investigations were carried out for the 5,10-bis(2-methoxyethyl)-5,10-dihydrophenazine (BMEPZ) catholyte, which has been recently proposed as a high-performance multiredox organic molecule. Taking advantage of the inherent colorimetric property of BMEPZ, we unravel the intrinsic electrochemical properties in terms of charge and mass transfer kinetics during the multiredox reaction through in operando visualization, which enables theoretical study of physicochemical hydrodynamics in electrochemical systems. Based on insights on the electrokinetic limitations in RFBs, we verify the validity of electrode geometry design that can suppress the range of the depletion region, leading to enhanced cell performance.-
dc.language영어-
dc.publisherNLM (Medline)-
dc.titleIn operando visualization of redox flow battery in membrane-free microfluidic platform-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000766704900005-
dc.identifier.scopusid2-s2.0-85125215184-
dc.identifier.rimsid77829-
dc.contributor.affiliatedAuthorKisuk Kang-
dc.identifier.doi10.1073/pnas.2114947119-
dc.identifier.bibliographicCitationProceedings of the National Academy of Sciences of the United States of America, v.119, no.9-
dc.relation.isPartOfProceedings of the National Academy of Sciences of the United States of America-
dc.citation.titleProceedings of the National Academy of Sciences of the United States of America-
dc.citation.volume119-
dc.citation.number9-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaScience & Technology - Other Topics-
dc.relation.journalWebOfScienceCategoryMultidisciplinary Sciences-
dc.subject.keywordPlusMIXING REACTANTS-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusELECTRODES-
dc.subject.keywordPlusENERGY-
dc.subject.keywordPlusCHANNEL-
dc.subject.keywordPlusFUEL-CELL-
dc.subject.keywordPlusX-RAY-
dc.subject.keywordPlusTRANSVERSE DIFFUSION-
dc.subject.keywordAuthorin operando visualization-
dc.subject.keywordAuthorin-depth study-
dc.subject.keywordAuthormembrane-free redox flow battery-
dc.subject.keywordAuthormultiredox organic molecule-
dc.subject.keywordAuthorelectrochemistry and hydrodynamics-
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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