Synthesis of high coercivity core-shell nanorods based on nickel and cobalt and their magnetic properties.

Nanoscale Research Letters
Tn NarayananMr Anantharaman

Abstract

Hybrid magnetic nanostructures with high coercivity have immense application potential in various fields. Nickel (Ni) electrodeposited inside Cobalt (Co) nanotubes (a new system named Ni @ Co nanorods) were fabricated using a two-step potentiostatic electrodeposition method. Ni @ Co nanorods were crystalline, and they have an average diameter of 150 nm and length of ~15 μm. The X-ray diffraction studies revealed the existence of two separate phases corresponding to Ni and Co. Ni @ Co nanorods exhibited a very high longitudinal coercivity. The general mobility-assisted growth mechanism proposed for the growth of one-dimensional nanostructures inside nano porous alumina during potentiostatic electrodeposition is found to be valid in this case too.

References

Sep 16, 2004·Angewandte Chemie·Martin SteinhartJoachim H Wendorff
May 5, 2005·Proceedings of the National Academy of Sciences of the United States of America·Guowen MengPulickel M Ajayan
May 31, 2006·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Huaqiang CaoXiangwen Liu
May 30, 2008·Nano Letters·Fung Suong OuPulickel M Ajayan

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Citations

Mar 31, 2011·Advanced Drug Delivery Reviews·Challa S S R Kumar, Faruq Mohammad
Dec 1, 2011·Nanoscale Research Letters·Liying ZhangYafei Zhang

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Methods Mentioned

BETA
X-ray
electron diffraction

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