Understanding the role of Br- during the electrooxidation of I- in aqueous media: I2Br-(aq)-formation without the precipitation of an iodine film
DC Field | Value | Language |
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dc.contributor.author | Park, Cheolmin | - |
dc.contributor.author | Chang, Jin ho | - |
dc.date.accessioned | 2023-09-18T06:24:27Z | - |
dc.date.available | 2023-09-18T06:24:27Z | - |
dc.date.created | 2023-07-21 | - |
dc.date.issued | 2021-12 | - |
dc.identifier.issn | 0253-2964 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/190572 | - |
dc.description.abstract | Zn-polyiodide redox flow battery is considered to be promising energy storage systems. However, the rate of the I-3(-)(aq)/I-(aq) half redox reaction could be limited by a metastable iodine film in aqueous solutions. In this article, we found that the addition of Br- could inhibit the formation of an iodine film (I-2-F) and form soluble I2Br-(aq) during the electrooxidation of I-. I- was electrochemically oxidized to the soluble form I-3(-)(aq). The depletion of I-(aq) and an increase of I-3(-)(aq) would lead to the formation of I-2 and form I-2-F. Then, under a steady state, I-(aq) was electrochemically oxidized to I-3(-)(aq) via I-2-F. However, the reaction pathway for the electrooxidation of I- was significantly altered by the addition of Br-. I- was electrochemically oxidized to I-3(-)(aq) and was further oxidized to I2Br-(aq) without the formation of I-2-F. Moreover, we estimated the stability constant of I2Br-(aq) and consequently the fractional diagrams of I-2(aq), I-3(-)(aq), and I2Br-(aq) existing in a solution with both I- and Br- during the electrooxidation of I-, providing the necessity of a highly concentrated Br- condition in the vicinity of an electrode to form I2Br-(aq) as the main iodine species through the electrooxidation of I-. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Understanding the role of Br- during the electrooxidation of I- in aqueous media: I2Br-(aq)-formation without the precipitation of an iodine film | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chang, Jin ho | - |
dc.identifier.doi | 10.1002/bkcs.12406 | - |
dc.identifier.scopusid | 2-s2.0-85115675049 | - |
dc.identifier.wosid | 000700184700001 | - |
dc.identifier.bibliographicCitation | BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.42, no.12, pp.1678 - 1685 | - |
dc.relation.isPartOf | BULLETIN OF THE KOREAN CHEMICAL SOCIETY | - |
dc.citation.title | BULLETIN OF THE KOREAN CHEMICAL SOCIETY | - |
dc.citation.volume | 42 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 1678 | - |
dc.citation.endPage | 1685 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.identifier.kciid | ART002786128 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | HIGH-ENERGY-DENSITY | - |
dc.subject.keywordPlus | RING-DISK ELECTRODE | - |
dc.subject.keywordPlus | ANODIC-OXIDATION | - |
dc.subject.keywordPlus | DISSOLUTION | - |
dc.subject.keywordAuthor | I2 | - |
dc.subject.keywordAuthor | Br- | - |
dc.subject.keywordAuthor | I-3(-)(aq) | - |
dc.subject.keywordAuthor | I-(aq) redox reaction | - |
dc.subject.keywordAuthor | iodine film | - |
dc.subject.keywordAuthor | rotating ring-disk electrode | - |
dc.subject.keywordAuthor | Zn-polyiodide redox flow battery | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/bkcs.12406 | - |
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