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Title: Control of physical properties of carbon nanofibers obtained from coaxial electrospinning of PMMA and PAN with adjustable inner/outer nozzle-ends
Authors: Kaerkitcha, Navaporn
Chuangchote, Surawut
Sagawa, Takashi  kyouindb  KAKEN_id
Author's alias: 佐川, 尚
Keywords: Coaxial electrospinning
Core/shell nanofibers
Adjustable nozzle-end
Issue Date: 12-Apr-2016
Publisher: Springer Nature
Journal title: Nanoscale Research Letters
Volume: 11
Issue: 1
Thesis number: 186
Abstract: Hollow carbon nanofibers (HCNFs) were prepared by electrospinning method with several coaxial nozzles, in which the level of the inner nozzle-end is adjustable. Core/shell nanofibers were prepared from poly(methyl methacrylate) (PMMA) as a pyrolytic core and polyacrylonitrile (PAN) as a carbon shell with three types of normal (viz. inner and outer nozzle-ends are balanced in the same level), inward, and outward coaxial nozzles. The influence of the applied voltage on these three types of coaxial nozzles was studied. Specific surface area, pore size diameter, crystallinity, and degree of graphitization of the hollow and mesoporous structures of carbon nanofibers obtained after carbonization of the as spun PMMA/PAN nanofibers were characterized by BET analyses, X-ray diffraction, and Raman spectroscopy in addition to the conductivity measurements. It was found that specific surface area, crystallinity, and graphitization degree of the HCNFs affect the electrical conductivity of the carbon nanofibers.
Rights: © 2016 Kaerkitcha et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
URI: http://hdl.handle.net/2433/218325
DOI(Published Version): 10.1186/s11671-016-1416-7
PubMed ID: 27067734
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