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Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique

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2018
3911.pdf (815.2Kb)
Authors
Grujić, Aleksandar
Ćosović, Vladan
Stajić-Trošić, Jasna
Ćosović, Aleksandar
Stijepović, Mirko
Putić, Lana S.
Žák, Tomáš
article (publishedVersion)
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Abstract
In this study, electrospinning combined with sol-gel technique is applied in order to produce magnetic nickel ferrite (Ni-ferrite) nanofibers. The prepared Ni-ferrite gel was mixed with poly(vinylpyrrolidone) (PVP) solution which was used as a spinning aid to enable spinnability of the mixture. Structural and morphological characteristics of the asspun ferrite gel/PVP composite web structure and calcinated Ni-ferrite nanofibers were analyzed using scanning electron microscopy (SEM). Phase composition analysis was carried out by Fourier-transform infrared (FT-IR) spectroscopy, X-Ray diffraction analysis (XRD) and Fe-57 Mossbauer spectroscopy (MS). The obtained results suggest that the pure nanocrystalline NiFe2O4 dense mat to the almost coral-like structure of fibers with diameters ranging from hundreds of nanometers to few micrometers was obtained. The results of MS analysis revealed the existence of a crystallite size distribution within the material as well as the existence of a supe...rparamagnetic fraction with very small crystallite sizes ( lt 13nm). Magnetic behavior of the obtained material at elevated temperatures was also scrutinized using thermomagnetic measurements (TM) up to 800 degrees C.

Keywords:
Ni-ferrite / sol-gel / electrospinning, nanofibers / thermomagnetic behavior
Source:
Metallurgical & Materials Engineering, 2018, 24, 3, 173-180
Publisher:
  • Savez inženjera metalurgije Srbije, Beograd
Funding / projects:
  • info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/34011/RS// (RS-34011)
  • info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45019/RS// (RS-45019)
  • info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172037/RS// (RS-172037)

DOI: 10.30544/387

ISSN: 2217-8961

WoS: 000457316300002

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URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3914
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  • Radovi istraživača / Researchers’ publications (TMF)
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Tehnološko-metalurški fakultet

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