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Title: Electrospinning of nickel oxide nanofibers: Process parameters and morphology control

Abstract

In the present work, nickel oxide nanofibers with varying morphology (diameter and roughness) were fabricated via electrospinning technique using a precursor composed of nickel acetate and polyvinyl alcohol. It was found that the diameter and surface roughness of individual nickel oxide nanofibers are strongly dependent upon nickel acetate concentration in the precursor. With increasing nickel acetate concentration, the diameter of nanofibers increased and the roughness decreased. An optimum concentration of nickel acetate in the precursor resulted in the formation of smooth and continuous nickel oxide nanofibers whose diameter can be further controlled via electrospinning voltage. Beyond an optimum concentration of nickel acetate, the resulting nanofibers were found to be ‘flattened’ and ‘wavy’ with occasional cracking across their length. Transmission electron microscopy analysis revealed that the obtained nanofibers are polycrystalline in nature. These nickel oxide nanofibers with varying morphology have potential applications in various engineering domains. - Highlights: • Nickel oxide nanofibers were synthesized via electrospinning. • Fiber diameter and roughness depend on nickel acetate concentration used. • With increasing nickel acetate concentration the roughness of nanofibers decreased. • XRD and TEM revealed a polycrystalline structure of the nanofibers.

Authors:
;
Publication Date:
OSTI Identifier:
22403537
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 95; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACETATES; CONCENTRATION RATIO; CRACKING; ELECTRIC POTENTIAL; MORPHOLOGY; NANOFIBERS; NICKEL; NICKEL OXIDES; POLYCRYSTALS; PVA; ROUGHNESS; SURFACES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Khalil, Abdullah, E-mail: akhalil@masdar.ac.ae, and Hashaikeh, Raed, E-mail: rhashaikeh@masdar.ac.ae. Electrospinning of nickel oxide nanofibers: Process parameters and morphology control. United States: N. p., 2014. Web. doi:10.1016/J.MATCHAR.2014.06.005.
Khalil, Abdullah, E-mail: akhalil@masdar.ac.ae, & Hashaikeh, Raed, E-mail: rhashaikeh@masdar.ac.ae. Electrospinning of nickel oxide nanofibers: Process parameters and morphology control. United States. doi:10.1016/J.MATCHAR.2014.06.005.
Khalil, Abdullah, E-mail: akhalil@masdar.ac.ae, and Hashaikeh, Raed, E-mail: rhashaikeh@masdar.ac.ae. Mon . "Electrospinning of nickel oxide nanofibers: Process parameters and morphology control". United States. doi:10.1016/J.MATCHAR.2014.06.005.
@article{osti_22403537,
title = {Electrospinning of nickel oxide nanofibers: Process parameters and morphology control},
author = {Khalil, Abdullah, E-mail: akhalil@masdar.ac.ae and Hashaikeh, Raed, E-mail: rhashaikeh@masdar.ac.ae},
abstractNote = {In the present work, nickel oxide nanofibers with varying morphology (diameter and roughness) were fabricated via electrospinning technique using a precursor composed of nickel acetate and polyvinyl alcohol. It was found that the diameter and surface roughness of individual nickel oxide nanofibers are strongly dependent upon nickel acetate concentration in the precursor. With increasing nickel acetate concentration, the diameter of nanofibers increased and the roughness decreased. An optimum concentration of nickel acetate in the precursor resulted in the formation of smooth and continuous nickel oxide nanofibers whose diameter can be further controlled via electrospinning voltage. Beyond an optimum concentration of nickel acetate, the resulting nanofibers were found to be ‘flattened’ and ‘wavy’ with occasional cracking across their length. Transmission electron microscopy analysis revealed that the obtained nanofibers are polycrystalline in nature. These nickel oxide nanofibers with varying morphology have potential applications in various engineering domains. - Highlights: • Nickel oxide nanofibers were synthesized via electrospinning. • Fiber diameter and roughness depend on nickel acetate concentration used. • With increasing nickel acetate concentration the roughness of nanofibers decreased. • XRD and TEM revealed a polycrystalline structure of the nanofibers.},
doi = {10.1016/J.MATCHAR.2014.06.005},
journal = {Materials Characterization},
issn = {1044-5803},
number = ,
volume = 95,
place = {United States},
year = {2014},
month = {9}
}