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Synthesis and conductivity studies of piperidine-4-carboxylic acid functionalized Fe 3O 4 nanoparticles
KTH, School of Information and Communication Technology (ICT), Material Physics, Functional Materials, FNM.ORCID iD: 0000-0001-5678-5298
2012 (English)In: Materials research bulletin, ISSN 0025-5408, E-ISSN 1873-4227, Vol. 47, no 9, 2193-2199 p.Article in journal (Refereed) Published
Abstract [en]

Piperidine-4-carboxylic acid (PPCA) functionalized Fe 3O 4 nanoparticles as a novel organic-inorganic hybrid was fabricated and characterized by XRD, FT-IR, VSM, and TEM techniques. Its detailed electrical properties are also presented. Composition was determined as Fe 3O 4, while particles were observed to have spherical morphology. VSM measurement proved the super-paramagnetic property of the as synthesized nanocomposite. ac and dc conductivity measurements indicated semiconductor characteristics and changing trends with temperature because of reorganization of the nanocomposite. dc conductivity is strongly temperature dependent and is classified into three regions. Analysis of the real and imaginary parts of the permittivity of nanocomposite showed the ionic polarization mechanism consisting of ionic conductivity and interfacial polarization.

Place, publisher, year, edition, pages
2012. Vol. 47, no 9, 2193-2199 p.
Keyword [en]
Magnetic materials, Chemical synthesis, Impedance spectroscopy, Electrical properties
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-101343DOI: 10.1016/j.materresbull.2012.06.006ISI: 000309081400013ScopusID: 2-s2.0-84864595966OAI: diva2:547862

QC 20120829

Available from: 2012-08-29 Created: 2012-08-27 Last updated: 2012-11-09Bibliographically approved

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Toprak, Muhammet S.
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