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Ryu, Jungki
Bioinspired Functional Materials Lab.
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dc.citation.number 5 -
dc.citation.startPage 2202101 -
dc.citation.volume 10 - Bae, Sanghyun - De Guzman, Rod Alexei Fitrian - Jeon, Dasom - Kim, Minjung - Ryu, Jungki - 2023-12-21T13:07:46Z - 2023-12-21T13:07:46Z - 2022-12-05 - 2023-02 -
dc.description.abstract Photoelectrochemical (PEC) water oxidation is a highly challenging task that acts as a bottleneck for efficient solar hydrogen production. It is because each cycle of water oxidation is composed of four proton-coupled electron transfer (PCET) processes and conventional photoanodes and cocatalysts have limited roles in enhancing the charge separation and storage rather than in enhancing catalytic activity. In this study, a simple and generally applicable strategy to improve the PEC performance of water oxidation photoanodes through their modification with polyethyleneimine (PEI) hydrogel is reported. The rich amine groups of PEI not only allow the facile and stable modification of photoanodes by crosslinking but also contribute to improving the kinetics of PEC water oxidation by boosting the PCET. Consequently, the PEC performance of various photoanodes, such as BiVO4, Fe2O3, and TiO2, is significantly enhanced in terms of photocurrent densities and onset potentials even in the presence of notable cocatalyst, cobalt phosphate. The present study provides new insights into and strategies for the design of efficient photoelectrodes and PEC devices. -
dc.identifier.bibliographicCitation ADVANCED MATERIALS INTERFACES, v.10, no.5, pp.2202101 -
dc.identifier.doi 10.1002/admi.202202101 -
dc.identifier.issn 2196-7350 -
dc.identifier.scopusid 2-s2.0-85143890272 -
dc.identifier.uri -
dc.identifier.url -
dc.identifier.wosid 000895968800001 -
dc.language 영어 -
dc.publisher WILEY -
dc.title Amine‐Rich Hydrogels Enhance Solar Water Oxidation via Boosting Proton‐Coupled Electron Transfer -
dc.type Article -
dc.description.isOpenAccess TRUE -
dc.relation.journalWebOfScienceCategory Chemistry, Multidisciplinary;Materials Science, Multidisciplinary -
dc.relation.journalResearchArea Chemistry;Materials Science -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor hydrogel -
dc.subject.keywordAuthor photoanodes -
dc.subject.keywordAuthor photoelectrochemical water oxidation -
dc.subject.keywordAuthor polyethyleneimine -
dc.subject.keywordAuthor proton-coupled electron transfer -
dc.subject.keywordPlus TIO2 NANOTUBE ARRAYS -
dc.subject.keywordPlus MO-DOPED BIVO4 -
dc.subject.keywordPlus OXYGEN EVOLUTION -
dc.subject.keywordPlus PHOTOANODES -
dc.subject.keywordPlus EFFICIENT -
dc.subject.keywordPlus PATHWAYS -
dc.subject.keywordPlus KINETICS -
dc.subject.keywordPlus CATALYST -


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