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Liquid-phase Synthesis Of Nickel Nanoparticles Stabilized By PVP And Study Of Their Structural And Magnetic Properties

Mandeep Singh, Manish Kumar, Frantisek Stipanek, Pavel Ulbrich, Pavel Svoboda, Eva Santava, M.L. Singla

Volume 2, Issue 6, Page 409-414, Year 2011 | DOI: 10.5185/amlett.2011.4257

Keywords: Nanoparticles; magnetic materials; electron microscopy; superparamagnetism.

Abstract: 

We have synthesized nickel nanoparticles using nickel chloride as a precursor in ethanol using PVP (Poly Vinyl Pyrrolidone) as a surfactant and hydrazine hydrate as reducing agent at 60 °C in a facile manner. The structural analysis showed that particles are face-centered cubic and monodisperse within the PVP matrix with average size about 3 nm. The magnetic analysis shows the superparamagnetism of the single-domain nickel nanoparticles with the blocking temperature (Tb) exists around 14 K with clear hysteretic effect observation below this blocking temperature. Copyright © 2011 VBRI press.

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