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Enhanced magnetic properties of polymer-magnetic nanostructures synthesized by ultrasonication

Thanigai Arul, K.; Manikandan, E.; Marmu, P.P.; Kennedy, J.; Henini, M.

Enhanced magnetic properties of polymer-magnetic nanostructures synthesized by ultrasonication Thumbnail


Authors

K. Thanigai Arul

E. Manikandan

P.P. Marmu

J. Kennedy



Abstract

Polymer based nickel (Ni) and cobalt (Co) co-doped ferrites were prepared by adept ultrasonication route. Different concentrations of polymer [polyvinyl alcohol (PVA)] (0.2 g and 0.5 g) was added as a surfactant to the magnetic particles. The phase purity of Ni-Co ferrites (spinel structure) was confirmed by X-ray diffraction (XRD). Enhanced saturation magnetization of polymer based magnetic nanoparticles due to shape anisotropy and size. 0.2 wt% doped ferrite showed superparamagnetic characteristics with blocking temperature above room temperature. Hence, ultrasonication route is a rapid and effective technique for tailoring size and morphology of magnetic nanostructure that could be useful in magnetic-sensor applications.

Journal Article Type Article
Acceptance Date May 14, 2017
Online Publication Date May 16, 2017
Deposit Date Jun 29, 2017
Publicly Available Date Jun 29, 2017
Journal Journal of Alloys and Compounds
Print ISSN 0925-8388
Electronic ISSN 1873-4669
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 720
DOI https://doi.org/10.1016/j.jallcom.2017.05.146
Keywords Ultrasonication; Magnetic nanostructures; Polymers; Nanocomposites; Magnetization
Public URL https://nottingham-repository.worktribe.com/output/860604
Publisher URL http://www.sciencedirect.com/science/article/pii/S0925838817317425

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