Electrospun cyclodextrin nanofibers as precursor for carbon nanofibers

buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481en_US
dc.citation.epage5666en_US
dc.citation.issueNumber13en_US
dc.citation.spage5655en_US
dc.citation.volumeNumber55en_US
dc.contributor.authorPatil, Bhushan
dc.contributor.authorYıldız, Zehra İrem
dc.contributor.authorUyar, Tamer
dc.contributor.bilkentauthorPatil, Bhushan
dc.contributor.bilkentauthorYıldız, Zehra İrem
dc.contributor.bilkentauthorUyar, Tamer
dc.date.accessioned2021-02-19T09:06:13Z
dc.date.available2021-02-19T09:06:13Z
dc.date.issued2020
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe carbon nanofibers (CNF) based on the electrospun polymer-free hydroxypropyl-β-cyclodextrin (HPβCD) nanofibers were obtained by the combination of chemical and thermal (pyrolysis) treatment. The thermal and chemical decomposition of HPβCD makes it challenging to obtain persistent CNF from HPβCD nanofibers. The chemical treatment of HPβCD nanofibers by using 0.6 mM H2SO4 partially dissolves nanofibers and resulted in fused CNF while direct pyrolysis of HPβCD nanofibers totally ruins the nanofiber structure and produces char. The partial chemical treatment of HPβCD nanofibers with 10 µM H2SO4 dehydrates the top layer of the nanofibers, and a shield-like structure is formed which helps to retain the fibrous morphology during the pyrolysis. The diameter of HPβCD nanofibers was reduced after carbonization process where CNF having average diameter of 380 ± 150 nm were obtained. The presence of typical D and G Raman bands and XRD peak at 2θ ~ 26° further validates CNF formation from HPβCD nanofibers. The oxygen content is decreased from 34.7 to 5.8%, and carbon content increased from 62.3% to 94.2% after transformation of HPβCD nanofibers into CNF. To the best of our knowledge, for the first time, this study reports the use of electrospun polymer-free HPβCD nanofibers as a precursor to produce CNF.en_US
dc.identifier.doi10.1007/s10853-020-04374-3en_US
dc.identifier.issn0022-2461
dc.identifier.urihttp://hdl.handle.net/11693/75479
dc.language.isoEnglishen_US
dc.publisherSpringeren_US
dc.relation.isversionofhttps://dx.doi.org/10.1007/s10853-020-04374-3en_US
dc.source.titleJournal of Materials Scienceen_US
dc.titleElectrospun cyclodextrin nanofibers as precursor for carbon nanofibersen_US
dc.typeArticleen_US
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