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Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinning

Electrospun fibrous membranes find place in diverse applications like sensors, filters, fuel cell membranes, scaffolds for tissue engineering, organic electronics etc. The objectives of present work are to electrospun polyacrylonitrile (PAN) nanofibers and PAN–CNT nanocomposite nanofibers and conver...

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Autores principales: Kaur, Narinder, Kumar, Vipin, Dhakate, Sanjay R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4837748/
https://www.ncbi.nlm.nih.gov/pubmed/27217998
http://dx.doi.org/10.1186/s40064-016-2051-6
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author Kaur, Narinder
Kumar, Vipin
Dhakate, Sanjay R.
author_facet Kaur, Narinder
Kumar, Vipin
Dhakate, Sanjay R.
author_sort Kaur, Narinder
collection PubMed
description Electrospun fibrous membranes find place in diverse applications like sensors, filters, fuel cell membranes, scaffolds for tissue engineering, organic electronics etc. The objectives of present work are to electrospun polyacrylonitrile (PAN) nanofibers and PAN–CNT nanocomposite nanofibers and convert into carbon nanofiber and carbon-CNT composite nanofiber. The work was divided into two parts, development of nanofibers and composite nanofiber. The PAN nanofibers were produced from 9 wt% PAN solution by electrospinning technique. In another case PAN–CNT composite nanofibers were developed from different concentrations of MWCNTs (1–3 wt%) in 9 wt% PAN solution by electrospinning. Both types of nanofibers were undergone through oxidation, stabilization, carbonization and graphitization. At each stage of processing of carbon and carbon-CNT composite nanofibers were characterized by SEM, AFM, TGA and XRD. It was observed that diameter of nanofiber varies with processing parameters such as applied voltage tip to collector distance, flow rate of solution and polymer concentrations etc. while in case of PAN–CNT composite nanofiber diameter decreases with increasing concentration of CNT in PAN solution. Also with stabilization, carbonization and graphitization diameter of nanofiber decreases. SEM images shows that the minimum fiber diameter in case of 3 wt% of CNT solution because as viscosity increases it reduces the phase separation of PAN and solvent and as a consequence increases in the fiber diameter. AFM images shows that surface of film is irregular which give idea about mat type orientation of fibers. XRD results show that degree of graphitization increases on increasing CNT concentration because of additional stresses exerting on the nanofiber surface in the immediate vicinity of CNTs. TGA results shows wt loss decreases as CNT concentration increases in fibers.
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spelling pubmed-48377482016-05-23 Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinning Kaur, Narinder Kumar, Vipin Dhakate, Sanjay R. Springerplus Research Electrospun fibrous membranes find place in diverse applications like sensors, filters, fuel cell membranes, scaffolds for tissue engineering, organic electronics etc. The objectives of present work are to electrospun polyacrylonitrile (PAN) nanofibers and PAN–CNT nanocomposite nanofibers and convert into carbon nanofiber and carbon-CNT composite nanofiber. The work was divided into two parts, development of nanofibers and composite nanofiber. The PAN nanofibers were produced from 9 wt% PAN solution by electrospinning technique. In another case PAN–CNT composite nanofibers were developed from different concentrations of MWCNTs (1–3 wt%) in 9 wt% PAN solution by electrospinning. Both types of nanofibers were undergone through oxidation, stabilization, carbonization and graphitization. At each stage of processing of carbon and carbon-CNT composite nanofibers were characterized by SEM, AFM, TGA and XRD. It was observed that diameter of nanofiber varies with processing parameters such as applied voltage tip to collector distance, flow rate of solution and polymer concentrations etc. while in case of PAN–CNT composite nanofiber diameter decreases with increasing concentration of CNT in PAN solution. Also with stabilization, carbonization and graphitization diameter of nanofiber decreases. SEM images shows that the minimum fiber diameter in case of 3 wt% of CNT solution because as viscosity increases it reduces the phase separation of PAN and solvent and as a consequence increases in the fiber diameter. AFM images shows that surface of film is irregular which give idea about mat type orientation of fibers. XRD results show that degree of graphitization increases on increasing CNT concentration because of additional stresses exerting on the nanofiber surface in the immediate vicinity of CNTs. TGA results shows wt loss decreases as CNT concentration increases in fibers. Springer International Publishing 2016-04-19 /pmc/articles/PMC4837748/ /pubmed/27217998 http://dx.doi.org/10.1186/s40064-016-2051-6 Text en © Kaur et al. 2016 Open AccessThis 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.
spellingShingle Research
Kaur, Narinder
Kumar, Vipin
Dhakate, Sanjay R.
Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinning
title Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinning
title_full Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinning
title_fullStr Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinning
title_full_unstemmed Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinning
title_short Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinning
title_sort synthesis and characterization of multiwalled cnt–pan based composite carbon nanofibers via electrospinning
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4837748/
https://www.ncbi.nlm.nih.gov/pubmed/27217998
http://dx.doi.org/10.1186/s40064-016-2051-6
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