Fabrication of Ultrafine Carbon Fibers Possessing a Nanoporous Structure from Electrospun Polyvinyl Alcohol Fibers Containing Silica Nanoparticles
Joint Authors
Sawada, Koichi
Sakai, Shinji
Taya, Masahito
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-16
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Ultrafine carbon fibers with a nanoporous structure were fabricated by the template method using silica nanoparticles (NPs) embedded in fibers of approximate diameter 500 nm, electrospun from an aqueous solution of polyvinyl alcohol, CoCl2, silica NPs, and N,N-dimethylformamide.
Black, conductive fibers were obtained by heat treatment in air and a chemical vapor deposition reaction under methanol vapor for more than 5 h.
Transmission electron microscopy (TEM) demonstrated that the fabricated fibers after silica removal had a porous structure originating from 15 nm diameter silica NPs.
Energy dispersive X-ray analysis combined with TEM confirmed the removal of silica from the fibers by NaOH treatment at 80°C.
Total surface area and total pore volume of the fibers after silica removal, determined by nitrogen adsorption measurement, were 318 m2/g and 1.67 cm3/g, respectively.
The sheet resistivities of the fabricated fibers were 35.1–477 Ω/□, which were relatively high, compared with that reported for polyacrylonitrile-based fibers carbonized at 800°C.
D and G bands detected in the Raman spectrum of the NaOH-treated fibers showed that the prepared carbon fibers were more crystalline than natural carbonaceous materials.
American Psychological Association (APA)
Sawada, Koichi& Sakai, Shinji& Taya, Masahito. 2014. Fabrication of Ultrafine Carbon Fibers Possessing a Nanoporous Structure from Electrospun Polyvinyl Alcohol Fibers Containing Silica Nanoparticles. Journal of Nanomaterials،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1041580
Modern Language Association (MLA)
Sawada, Koichi…[et al.]. Fabrication of Ultrafine Carbon Fibers Possessing a Nanoporous Structure from Electrospun Polyvinyl Alcohol Fibers Containing Silica Nanoparticles. Journal of Nanomaterials No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1041580
American Medical Association (AMA)
Sawada, Koichi& Sakai, Shinji& Taya, Masahito. Fabrication of Ultrafine Carbon Fibers Possessing a Nanoporous Structure from Electrospun Polyvinyl Alcohol Fibers Containing Silica Nanoparticles. Journal of Nanomaterials. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1041580
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1041580