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Synthesis and conductivity studies of piperidine-4-carboxylic acid functionalized Fe 3O 4 nanoparticles
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik, Funktionella material, FNM.ORCID-id: 0000-0001-5678-5298
2012 (Engelska)Ingår i: Materials research bulletin, ISSN 0025-5408, E-ISSN 1873-4227, Vol. 47, nr 9, s. 2193-2199Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
2012. Vol. 47, nr 9, s. 2193-2199
Nyckelord [en]
Magnetic materials, Chemical synthesis, Impedance spectroscopy, Electrical properties
Nationell ämneskategori
Materialteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-101343DOI: 10.1016/j.materresbull.2012.06.006ISI: 000309081400013Scopus ID: 2-s2.0-84864595966OAI: oai:DiVA.org:kth-101343DiVA, id: diva2:547862
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QC 20120829

Tillgänglig från: 2012-08-29 Skapad: 2012-08-27 Senast uppdaterad: 2017-12-07Bibliografiskt granskad

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Toprak, Muhammet S.

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