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Electrospun one-dimensional graphitic carbon nitride-coated carbon hybrid nanofibers (GCN/CNFs) for photoelectrochemical applications

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dc.contributor.author장준영-
dc.contributor.author강수희-
dc.contributor.authorRajendra C. Pawar-
dc.contributor.author이선영-
dc.date.accessioned2021-06-22T12:41:43Z-
dc.date.available2021-06-22T12:41:43Z-
dc.date.created2021-01-22-
dc.date.issued2018-09-
dc.identifier.issn1567-1739-
dc.identifier.urihttps://scholarworks.bwise.kr/erica/handle/2021.sw.erica/7364-
dc.description.abstractCoupling of graphitic carbon nitride (GCN) with electrospun carbon nanofibers (CNFs) enhanced the photoelectrochemical (PEC) performance of a pristine GCN photoanode. Polyacrylonitrile (PAN) was electrospun to form fibers that were then carbonized to form one-dimensional (1D) CNFs, which were then used to fabricate the GCN structure. The optimum GCN/CNFs hybrid structure was obtained by controlling the amount of GCN precursors (urea/thiourea). The surface morphology of the hybrid structure revealed the coating of GCN on the CNFs. Additionally, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, and X-ray diffraction confirmed the phases of the GCN/CNFs hybrids. PEC results showed a higher photocurrent of 3 μA for the hybrid compared with that of 1 μA for the pristine GCN. The high photocurrent for the hybrid structures indicated the formation of heterojunctions that resulted from a lower recombination rate of charge carriers. Moreover, UTh0.075 (0.075 g of urea and 0.075 g of thiourea) hybrid sample showed the highest performance of hydrogen generation with its numerical value of 437 μmol/g, compared to those of UTh0.1(0.1 g of urea and 0.1 g of thiourea) and UTh0.05 (0.05 g of urea and 0.05 g of thiourea) composite samples. This higher hydrogen production could be explained again with successful formation of heterojunctions between GCN and CNFs. Overall, we report a new approach for obtaining 1D hybrid structures, having better PEC performance than that of pristine GCN. These hybrids could potentially be used in energy-related devices.-
dc.language영어-
dc.language.isoen-
dc.publisher한국물리학회-
dc.titleElectrospun one-dimensional graphitic carbon nitride-coated carbon hybrid nanofibers (GCN/CNFs) for photoelectrochemical applications-
dc.typeArticle-
dc.contributor.affiliatedAuthor이선영-
dc.identifier.doi10.1016/j.cap.2018.05.016-
dc.identifier.scopusid2-s2.0-85047374040-
dc.identifier.wosid000436588000008-
dc.identifier.bibliographicCitationCurrent Applied Physics, v.18, no.9, pp.1006 - 1012-
dc.relation.isPartOfCurrent Applied Physics-
dc.citation.titleCurrent Applied Physics-
dc.citation.volume18-
dc.citation.number9-
dc.citation.startPage1006-
dc.citation.endPage1012-
dc.type.rimsART-
dc.identifier.kciidART002385647-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.description.journalRegisteredClasskci-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaPhysics-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.subject.keywordPlusBinary alloys-
dc.subject.keywordPlusCarbon nanofibers-
dc.subject.keywordPlusElectrochemistry-
dc.subject.keywordPlusElectrospinning-
dc.subject.keywordPlusFourier transform infrared spectroscopy-
dc.subject.keywordPlusHeterojunctions-
dc.subject.keywordPlusHydrogen production-
dc.subject.keywordPlusMetabolism-
dc.subject.keywordPlusNitrides-
dc.subject.keywordPlusPhotocatalysts-
dc.subject.keywordPlusPhotoelectrochemical cells-
dc.subject.keywordPlusPolyacrylonitriles-
dc.subject.keywordPlusStructural optimization-
dc.subject.keywordPlusThioureas-
dc.subject.keywordPlusThorium alloys-
dc.subject.keywordPlusUranium alloys-
dc.subject.keywordPlusUrea-
dc.subject.keywordPlusX ray photoelectron spectroscopy-
dc.subject.keywordAuthorPhotocatalyst-
dc.subject.keywordAuthorGraphitic carbon nitride-
dc.subject.keywordAuthorElectrospinning-
dc.subject.keywordAuthorCarbon nanofibers-
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S1567173918301408-
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