Synthesis of High Coercivity Core–Shell Nanorods Based on Nickel and Cobalt and Their Magnetic Properties

<p>Abstract</p> <p>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 electrodeposi...

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Main Authors: Shaijumon MM, Ajayan PM, Narayanan TN, Anantharaman MR
Format: Article
Language:English
Published: SpringerOpen 2009-01-01
Series:Nanoscale Research Letters
Subjects:
Online Access:http://dx.doi.org/10.1007/s11671-009-9459-7
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author Shaijumon MM
Ajayan PM
Narayanan TN
Anantharaman MR
author_facet Shaijumon MM
Ajayan PM
Narayanan TN
Anantharaman MR
author_sort Shaijumon MM
collection DOAJ
description <p>Abstract</p> <p>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 &#956;m. 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.</p>
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spelling doaj.art-8686ce357d3d42deb393fca6576dac472023-09-02T14:56:24ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2009-01-0151164168Synthesis of High Coercivity Core&#8211;Shell Nanorods Based on Nickel and Cobalt and Their Magnetic PropertiesShaijumon MMAjayan PMNarayanan TNAnantharaman MR<p>Abstract</p> <p>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 &#956;m. 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.</p>http://dx.doi.org/10.1007/s11671-009-9459-7Magnetic nanowiresNanorodsHybrid nanostructuresCore&#8211;shell nanostructuresMobility-assisted growth mechanism
spellingShingle Shaijumon MM
Ajayan PM
Narayanan TN
Anantharaman MR
Synthesis of High Coercivity Core&#8211;Shell Nanorods Based on Nickel and Cobalt and Their Magnetic Properties
Nanoscale Research Letters
Magnetic nanowires
Nanorods
Hybrid nanostructures
Core&#8211;shell nanostructures
Mobility-assisted growth mechanism
title Synthesis of High Coercivity Core&#8211;Shell Nanorods Based on Nickel and Cobalt and Their Magnetic Properties
title_full Synthesis of High Coercivity Core&#8211;Shell Nanorods Based on Nickel and Cobalt and Their Magnetic Properties
title_fullStr Synthesis of High Coercivity Core&#8211;Shell Nanorods Based on Nickel and Cobalt and Their Magnetic Properties
title_full_unstemmed Synthesis of High Coercivity Core&#8211;Shell Nanorods Based on Nickel and Cobalt and Their Magnetic Properties
title_short Synthesis of High Coercivity Core&#8211;Shell Nanorods Based on Nickel and Cobalt and Their Magnetic Properties
title_sort synthesis of high coercivity core 8211 shell nanorods based on nickel and cobalt and their magnetic properties
topic Magnetic nanowires
Nanorods
Hybrid nanostructures
Core&#8211;shell nanostructures
Mobility-assisted growth mechanism
url http://dx.doi.org/10.1007/s11671-009-9459-7
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AT narayanantn synthesisofhighcoercivitycore8211shellnanorodsbasedonnickelandcobaltandtheirmagneticproperties
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