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Targeted morphology of copper oxide based electrospun nanofibers

Alshafei, Faisal H. and Simonetti, Dante A. (2020) Targeted morphology of copper oxide based electrospun nanofibers. Chemical Engineering Science, 219 . Art. No. 115547. ISSN 0009-2509. https://resolver.caltech.edu/CaltechAUTHORS:20200521-151305603

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Abstract

In this work, CuO-based nanofibers were synthesized via electrospinning. Smooth, defect-free fibers with a diameter of 261 ± 63 nm were fabricated and characterized. Thermal treatment under air at 823 K transformed the smooth nanofibers to a network of segmented, macroporous CuO nanoparticles with an average fiber diameter of 160 ± 41 nm and a crystallite size of 55.4 nm. The effects of solution properties (polymer molecular weight, polymer/metal concentration, and solvent identity) and processing conditions (voltage, tip-to-collector distance, extrusion rate, and humidity) were also investigated. Solution properties were found to strongly influence viscosity, conductivity, dielectric constant, density, and surface tension, which invariably affected fiber dimension, morphology and surface structure. Fibers as thick as 536 nm and as thin as 70 nm with cylindrical and fused structures were produced by manipulating the solution properties. Processing conditions were found to moderately affect fiber uniformity and fiber diameter.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.ces.2020.115547DOIArticle
ORCID:
AuthorORCID
Simonetti, Dante A.0000-0002-5708-460X
Additional Information:© 2020 Elsevier Ltd. Received 26 August 2019, Revised 3 February 2020, Accepted 4 February 2020, Available online 5 February 2020.
Funders:
Funding AgencyGrant Number
UCLAUNSPECIFIED
American Chemical Society Petroleum Research FundUNSPECIFIED
Record Number:CaltechAUTHORS:20200521-151305603
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200521-151305603
Official Citation:Faisal H. Alshafei, Dante A. Simonetti, Targeted morphology of copper oxide based electrospun nanofibers, Chemical Engineering Science, Volume 219, 2020, 115547, ISSN 0009-2509, https://doi.org/10.1016/j.ces.2020.115547. (http://www.sciencedirect.com/science/article/pii/S0009250920300798)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103382
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 May 2020 22:18
Last Modified:21 May 2020 22:18

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