DC Field | Value | Language |
---|---|---|
dc.contributor.author | Son, Eun Jin | ko |
dc.contributor.author | Kim, Jae Hong | ko |
dc.contributor.author | Ko, Jong Wan | ko |
dc.contributor.author | Park, Chan Beum | ko |
dc.date.accessioned | 2017-07-18T05:43:01Z | - |
dc.date.available | 2017-07-18T05:43:01Z | - |
dc.date.created | 2017-07-03 | - |
dc.date.created | 2017-07-03 | - |
dc.date.issued | 2017-06 | - |
dc.identifier.citation | FARADAY DISCUSSIONS, v.198, pp.135 - 145 | - |
dc.identifier.issn | 1359-6640 | - |
dc.identifier.uri | http://hdl.handle.net/10203/224787 | - |
dc.description.abstract | In natural photosynthesis, solar energy is converted to chemical energy through a cascaded, photoinduced charge transfer chain that consists of primary and secondary acceptor quinones (i.e., Q(A) and Q(B)). This leads to an exceptionally high near-unity quantum yield. Inspired by the unique multistep architecture of charge transfer in nature, we have synthesized a catecholamine-functionalized, reduced graphene oxide (RGO) film as a redox mediator that can mimic quinone acceptors in photosystem II. We used polynorepinephrine (PNE) as a redox-shuttling chemical. We also used it to coat graphene oxide (GO) and to reduce GO to RGO. The quinone ligands in PNE, which are characterized by a charge transfer involving two electrons and two protons, acted as electron acceptors that facilitated charge transfer in photocatalytic water oxidation. Furthermore, PNE-coated RGO film promoted fast charge separation in [Ru(bpy)(3)](2+) and increased the activity of cobalt phosphate on photocatalytic water oxidation more than two-fold. The results suggest that our bio-inspired strategy for the construction of a forward charge transfer pathway can provide more opportunities to realize efficient artificial photosynthesis. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | SURFACE-CHEMISTRY | - |
dc.subject | PHOTOSYSTEM-II | - |
dc.subject | THIN-FILMS | - |
dc.subject | OXIDE | - |
dc.subject | MEDIATOR | - |
dc.subject | REDUCTION | - |
dc.subject | COATINGS | - |
dc.subject | ELECTRON | - |
dc.subject | SYSTEM | - |
dc.title | Catecholamine-functionalized graphene as a biomimetic redox shuttle for solar water oxidation | - |
dc.type | Article | - |
dc.identifier.wosid | 000402870300008 | - |
dc.identifier.scopusid | 2-s2.0-85021739157 | - |
dc.type.rims | ART | - |
dc.citation.volume | 198 | - |
dc.citation.beginningpage | 135 | - |
dc.citation.endingpage | 145 | - |
dc.citation.publicationname | FARADAY DISCUSSIONS | - |
dc.identifier.doi | 10.1039/c6fd00190d | - |
dc.contributor.localauthor | Park, Chan Beum | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SURFACE-CHEMISTRY | - |
dc.subject.keywordPlus | PHOTOSYSTEM-II | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | MEDIATOR | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | COATINGS | - |
dc.subject.keywordPlus | ELECTRON | - |
dc.subject.keywordPlus | SYSTEM | - |
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