Enhanced magnetic properties of polymer-magnetic nanostructures synthesized by ultrasonication

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

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.

Citation

Thanigai Arul, K., Manikandan, E., Marmu, P., Kennedy, J., & Henini, M. (in press). Enhanced magnetic properties of polymer-magnetic nanostructures synthesized by ultrasonication. Journal of Alloys and Compounds, 720, https://doi.org/10.1016/j.jallcom.2017.05.146

• 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