Issue 6, 2013
From the journal:

Journal of Materials Chemistry A

Comparison of functionalized carbon nanofibers and multi-walled carbon nanotubes as supports for Fe–Co nanoparticles†

Deborah Vidick,a   Marcus Herlitschke,bc   Claude Poleunis,d   Arnaud Delcorte,d   Raphael P. Hermann,bc   Michel Devillersa  and  Sophie Hermans*a  

* Corresponding authors

a Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain, Place Louis Pasteur, 1/3, B-1348 Louvain-la-Neuve, Belgium
E-mail: Sophie.Hermans@uclouvain.be
Fax: +32 10 47 23 30
Tel: +32 10 47 28 10

b Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
E-mail: r.hermann@fz-juelich.de

c Faculté des Sciences, Université de Liège, Liège, Belgium

d Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain, Croix du Sud, 1, B-1348 Louvain-la-Neuve, Belgium

Abstract

Multi-walled carbon nanotubes (MWCNT) and nanofibers (CNF) have been functionalized at their surfaces with chelating phosphine (PPh2) and ammonium (NMe3+) groups, as anchoring sites for metal complexes. The surface functionalization has been monitored by XPS, elemental analyses, N2 physisorption and/or SEM surface morphology analysis at each step. Bimetallic Fe–Co nanoparticles from two different starting cluster complexes, [HFeCo3(CO)12] (1) and (NEt4)[FeCo3(CO)12] (2), have been deposited onto the surfaces of the functionalized MWCNT and CNF as well as their pristine forms for comparison. The samples have been fully characterized before and after thermal treatment. The obtained nanoparticles were shown by TEM to be better dispersed and of smaller size on functionalized than on pristine supports. Magnetic characterization revealed blocked superparamagnetic Fe–Co nanoparticles together with paramagnetic ions on CNF as well as MWCNT.

Graphical abstract: Comparison of functionalized carbon nanofibers and multi-walled carbon nanotubes as supports for Fe–Co nanoparticles

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Article information

DOI
https://doi.org/10.1039/C2TA00131D
Article type
Paper
Submitted
30 Aug 2012
Accepted
27 Nov 2012
First published
28 Nov 2012

J. Mater. Chem. A, 2013,1, 2050-2063

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Comparison of functionalized carbon nanofibers and multi-walled carbon nanotubes as supports for Fe–Co nanoparticles

D. Vidick, M. Herlitschke, C. Poleunis, A. Delcorte, R. P. Hermann, M. Devillers and S. Hermans, J. Mater. Chem. A, 2013, 1, 2050 DOI: 10.1039/C2TA00131D

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