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Decoration of multiwalled carbon nanotubes with protected iron nanoparticles

Stolojan, V, McCafferty, L, King, SG, Zhang, W, Haq, S and Silva, SRP (2015) Decoration of multiwalled carbon nanotubes with protected iron nanoparticles Carbon, 84. pp. 47-55.

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Abstract

A method to simultaneously synthesize carbon-encapsulated magnetic iron nanoparticles (Fe-NPs) and attach these particles to multi-walled carbon nanotubes (MWCNT) is presented. Thermal decomposition of cyclopentadienyliron dicarbonyl dimer [(C5H5)(2)Fe-2(CO)(4)], over a range of temperatures from 250 degrees C to 1200 degrees C, results in the formation of Fe-NPs attached to MWCNT. At the same time, a protective carbon shell is produced and surrounds the Fe-NPs, covalently attaching the particles to the MWCNT and leading to resistance to acid dissolution. The carbon coating varies in degree of graphitisation, with higher synthesis temperatures leading to a higher degree of graphitisation. The growth model of the nanoparticles and subsequent mechanism of MWCNT attachment is discussed. Adsorption potential of the hybrid material towards organic dyes (Rhodamine B) has been displayed, an indication of potential uses as a material for water treatment. The material has also been electrospun into aligned nanocomposite fibres to produce a soft magnetic composite (SMC) with future applications in sensors and fast switching solenoids.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute
Authors :
AuthorsEmailORCID
Stolojan, VUNSPECIFIEDUNSPECIFIED
McCafferty, LUNSPECIFIEDUNSPECIFIED
King, SGUNSPECIFIEDUNSPECIFIED
Zhang, WUNSPECIFIEDUNSPECIFIED
Haq, SUNSPECIFIEDUNSPECIFIED
Silva, SRPUNSPECIFIEDUNSPECIFIED
Date : 1 April 2015
Identification Number : 10.1016/j.carbon.2014.11.042
Additional Information : © 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Depositing User : Symplectic Elements
Date Deposited : 13 May 2015 16:32
Last Modified : 01 Apr 2016 01:08
URI: http://epubs.surrey.ac.uk/id/eprint/807314

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