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dc.contributor.authorZhao, Peng
dc.contributor.authorWang, Lijie
dc.contributor.authorWu, Yusen
dc.contributor.authorYang, Tao
dc.contributor.authorDing, Yun
dc.contributor.authorYang, Hua Gui
dc.contributor.authorHu, Aiguo
dc.date.accessioned2019-09-29T23:06:51Z
dc.date.available2019-09-29T23:06:51Z
dc.date.issued2019
dc.identifier.issn0024-9297
dc.identifier.doi10.1021/acs.macromol.9b00551
dc.identifier.urihttp://hdl.handle.net/10072/387877
dc.description.abstractConjugated polymer (CP) aggregates with linear/cross-linked structures are widely reported as photocatalysts for hydrogen evolution reaction. For full disclosure of the relationship between the photocatalytic performance and structural features of the CP photocatalysts, homogeneous dispersion of these CPs in aqueous medium is necessary, which however is difficult to be achieved. Herein, we report several coassembled polymeric dots (Pdots) consisting of PEG45-b-PMMA103 and CPs with various structural features. We found that the Pdots of hyperbranched soluble CP nanoparticles (SCPNs) exhibit a high H2 evolution rate up to 840 μmol h–1 g–1 with no platinum or rhodium as a cocatalyst, superior to their analogues with the linear or cross-linked structure. A possible charge-transfer mechanism suggests that the photoelectrons directly mobilize to the surface of these single-particulate Pdots over three-dimensional skeleton and successfully avoid the ineffective intermolecular charge transfer, leading to the shortened diffusion path of photoelectrons and enhanced photolysis efficacy. We believe that the high dispersion stability (2 months), solution processability, and structural tunability of these Pdots with hyperbranched SCPNs would inspire further research on designing multicomponent photocatalysts for highly efficient visible light-driven hydrogen evolution reaction.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.relation.ispartofpagefrom4376
dc.relation.ispartofpageto4384
dc.relation.ispartofissue11
dc.relation.ispartofjournalMacromolecules
dc.relation.ispartofvolume52
dc.subject.fieldofresearchChemical Sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode03
dc.subject.fieldofresearchcode09
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsPolymer Science
dc.subject.keywordsGRAPHITIC CARBON NITRIDE
dc.subject.keywordsSIZE-CONTROLLED SYNTHESIS
dc.titleHyperbranched Conjugated Polymer Dots: The Enhanced Photocatalytic Activity for Visible Light-Driven Hydrogen Production
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationZhao, P; Wang, L; Wu, Y; Yang, T; Ding, Y; Yang, HG; Hu, A, Hyperbranched Conjugated Polymer Dots: The Enhanced Photocatalytic Activity for Visible Light-Driven Hydrogen Production, Macromolecules, 2019, 52 (11), pp. 4376-4384
dc.date.updated2019-09-29T23:04:21Z
gro.hasfulltextNo Full Text
gro.griffith.authorYang, Huagui


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