Carbonized electrospun polyvinylpyrrolidone/metal hybrid nanofiber composites for electrochemical applications

Carbonized electrospun polyvinylpyrrolidone/metal hybrid nanofiber composites for electrochemical applications

ABSTRACT Electrospinning is a very versatile and efficient method of fabricating nanofibers with the desired properties. Polyvinylpyrrolidone (PVP) in ethanol solution was electrospun into nanofibers and used as a precursor for the preparation of carbon nanofibers. Cobalt chloride was also incorpora...

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Bibliographic Details
Published in:Journal of applied polymer science Vol. 135; no. 1
Main Authors: Ekabutr, Pongpol, Ariyathanakul, Teeraseth, Chaiyo, Sudkate, Niamlang, Pimolpun, Rattanaveeranon, Santi, Chailapakul, Orawon, Supaphol, Pitt
Format: Journal Article
Language:English
Published: Hoboken Wiley Subscription Services, Inc 05-01-2018
Subjects:
and nanocrystals
Carbon
Carbon fibers
Charge efficiency
Charge transfer
Cobalt
Electrical resistivity
Electrochemical analysis
Electrochemical impedance spectroscopy
electrochemistry
Electrodes
Electrospinning
Ethanol
fibers
Materials science
Nanofibers
Nanoparticles
nanowires
Physical properties
Polymers
Polyvinylpyrrolidone
Scanning electron microscopy
Transmission electron microscopy
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Summary:ABSTRACT Electrospinning is a very versatile and efficient method of fabricating nanofibers with the desired properties. Polyvinylpyrrolidone (PVP) in ethanol solution was electrospun into nanofibers and used as a precursor for the preparation of carbon nanofibers. Cobalt chloride was also incorporated with PVP nanofibers to produce carbon nanofiber composites with enhanced electrical conductivity and electrochemical properties. The surface morphology and physical properties of the electrospun nanofibers, carbonized nanofibers, and their composites were observed by scanning electron microscopy, transmission electron microscopy, and X‐ray diffraction. The electrochemical behavior of the carbon nanofiber composites was studied by drop‐casting on a working surface of the screen‐printed carbon electrode and examined by cyclic voltammetry and electrochemical impedance spectroscopy. The results indicated that carbon nanofiber composites were decorated with cobalt nanoparticles and enhanced the charge‐transfer efficiency on the electrode surface. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45639.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.45639