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Negative Permittivi...
Negative Permittivity of Polyaniline-Fe3O4 Nanocomposite
- Article/chapterEnglish2013
Publisher, publication year, extent ...
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2012-10-16
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Springer Science and Business Media LLC,2013
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-120302
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-120302URI
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https://doi.org/10.1007/s10904-012-9776-7DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20130404
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Polyaniline-Fe3O4 nanocomposite with and without ionic liquid were successfully synthesized via in situ polymerization using cetyl trimethylammonium bromide (CTAB) as surfactant. Both TG analysis and FT-IR measurements proved the presence of organic layer on the surface of Fe3O4 nanoparticles. The influence of 1-butyl-3-methyl-imidazolium bromide (BMIMBr) as ionic liquid on the structure, conductivity, and magnetic property of PANI-Fe3O4-CTAB nanocomposite were studied in detail. The results show that imidazolium-based ionic liquids BMIMBr acts as an anchor agent during the formation of PANI-Fe3O4-CTAB nanocomposite. Ionic liquid significantly deteriorated nanocomposite's magnetic properties, and contributed to non-saturated M-H curve due to the disappearance of antiferromagnetic interactions. It has also an improving effect on AC and DC conductivities. The most important effect of IL is observed in real part of permittivity of PANI-Fe3O4-CTAB that it has negative high values at low frequency low temperature region. Due to the negative dielectric constant, material exhibits uncommon properties in electromagnetic waves scattering and attraction between similar charges. This possibility provokes research on these composites as high T superconductors, negative index materials and microwave absorbers.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Günay, M.
(author)
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Baykal, A.
(author)
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Toprak, Muhammet S.KTH,Funktionella material, FNM(Swepub:kth)u1u3m5a2
(author)
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Sozeri, H.
(author)
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Aktas, B.
(author)
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KTHFunktionella material, FNM
(creator_code:org_t)
Related titles
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In:Journal of Inorganic and Organometallic Polymers and Materials: Springer Science and Business Media LLC23:2, s. 306-3141574-14431574-1451
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