Full metadata record
DC Field | Value | Language |
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dc.contributor.author | An, Sanghyeok | - |
dc.contributor.author | Jeong, Kyeong-Jun | - |
dc.contributor.author | Hassan, Syed Zahid | - |
dc.contributor.author | Ham, Gayoung | - |
dc.contributor.author | Kang, Seonghyeon | - |
dc.contributor.author | Lee, Juhyeok | - |
dc.contributor.author | Ma, Hyeonjong | - |
dc.contributor.author | Kwon, Jieun | - |
dc.contributor.author | Jeong, Sang Young | - |
dc.contributor.author | Yang, Jiwoong | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Cho, Han-Hee | - |
dc.contributor.author | Cha, Hyojung | - |
dc.contributor.author | Son, Chang Yun | - |
dc.contributor.author | Chung, Dae Sung | - |
dc.date.accessioned | 2024-09-12T10:10:13Z | - |
dc.date.available | 2024-09-12T10:10:13Z | - |
dc.date.created | 2024-05-27 | - |
dc.date.issued | 2024-07 | - |
dc.identifier.issn | 2198-3844 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/56875 | - |
dc.description.abstract | A universal approach for enhancing water affinity in polymer photocatalysts by covalently attaching hydrophilic photocrosslinkers to polymer chains is presented. A series of bisdiazirine photocrosslinkers, each comprising bisdiazirine photophores linked by various aliphatic (CL-R) or ethylene glycol-based bridge chains (CL-TEG), is designed to prevent crosslinked polymer photocatalysts from degradation through a safe and efficient photocrosslinking reaction at a wavelength of 365nm. When employing the hydrophilic CL-TEG as a photocrosslinker with polymer photocatalysts (F8BT), the hydrogen evolution reaction (HER) rate is considerably enhanced by 2.5-fold compared to that obtained using non-crosslinked F8BT photocatalysts, whereas CL-R-based photocatalysts yield HER rates comparable to those of non-crosslinked counterparts. Photophysical analyses including time-resolved photoluminescence and transient absorption measurements reveal that adding CL-TEG accelerates exciton separation, forming long-lived charge carriers. Additionally, the in-depth study using molecular dynamics simulations elucidates the dual role of CL-TEG: it enhances water penetration into the polymer matrix and stabilizes charge carriers after exciton generation against undesirable recombination. Therefore, the strategy highlights endowing a high-permittivity environment within polymer photocatalyst in a controlled manner is crucial for enhancing photocatalytic redox reactivity. Furthermore, this study shows that this hydrophilic crosslinker approach has a broad applicability in general polymer semiconductors and their nanoparticulate photocatalysts. © 2024 The Authors. Advanced Science published by Wiley-VCH GmbH. | - |
dc.language | English | - |
dc.publisher | Wiley | - |
dc.title | Hydrophilic Photocrosslinkers as a Universal Solution to Endow Water Affinity to a Polymer Photocatalyst for an Enhanced Hydrogen Evolution Rate | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/advs.202309786 | - |
dc.identifier.wosid | 001225055400001 | - |
dc.identifier.scopusid | 2-s2.0-85193244747 | - |
dc.identifier.bibliographicCitation | Advanced Science, v.11, no.28 | - |
dc.description.isOpenAccess | TRUE | - |
dc.subject.keywordAuthor | photocatalytic performance | - |
dc.subject.keywordAuthor | polymer photocatalysts | - |
dc.subject.keywordAuthor | hydrophilic photocrosslinkers | - |
dc.subject.keywordAuthor | molecular dynamics simulations | - |
dc.subject.keywordAuthor | charge carrier stabilization | - |
dc.subject.keywordAuthor | exciton dynamics | - |
dc.subject.keywordAuthor | hydrogen evolution | - |
dc.subject.keywordPlus | ENERGY | - |
dc.citation.number | 28 | - |
dc.citation.title | Advanced Science | - |
dc.citation.volume | 11 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.type.docType | Article | - |