Article (Scientific journals)
Comparison of functionalized carbon nanofibers and multi-walled carbon nanotubes as supports for Fe-Co nanoparticles
Vidick, Deborah; Herlitschke, Marcus; Poleunis, Claude et al.
2013In Journal of Materials Chemistry A, 1 (6), p. 2050-2063
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Abstract :
[en] 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, N-2 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.
Disciplines :
Materials science & engineering
Physics
Chemistry
Energy
Author, co-author :
Vidick, Deborah;  Catholic Univ Louvain, Inst Condensed Matter & Nanosci IMCN, B-1348 Louvain, Belgium.
Herlitschke, Marcus;  Forschungszentrum Julich, Julich Ctr Neutron Sci JCNS, D-52425 Julich, Germany.
Poleunis, Claude;  Catholic Univ Louvain, Inst Condensed Matter & Nanosci IMCN, B-1348 Louvain, Belgium.
Delcorte, Arnaud;  Catholic Univ Louvain, Inst Condensed Matter & Nanosci IMCN, B-1348 Louvain, Belgium.
Hermann, Raphael ;  Université de Liège - ULiège
Devillersa, Michel;  Catholic Univ Louvain, Inst Condensed Matter & Nanosci IMCN, B-1348 Louvain, Belgium.
Hermans, Sophie;  Catholic Univ Louvain, Inst Condensed Matter & Nanosci IMCN, B-1348 Louvain, Belgium.
Language :
English
Title :
Comparison of functionalized carbon nanofibers and multi-walled carbon nanotubes as supports for Fe-Co nanoparticles
Publication date :
2013
Journal title :
Journal of Materials Chemistry A
ISSN :
2050-7488
eISSN :
2050-7496
Publisher :
Royal Society of Chemistry, Cambridge, United Kingdom
Volume :
1
Issue :
6
Pages :
2050-2063
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Interuniversity Attraction Pole Programme of the Belgian State [INANOMAT P6/17]
FWB - Fédération Wallonie-Bruxelles [BE]
National Lottery (FRFC)
Helmholtz Gemeinschaft Deutscher Forschungzentren [VH NG-407]
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Commentary :
The authors gratefully acknowledge the Fonds National de la Recherche Scientifique (FNRS-FRS), the Interuniversity Attraction Pole Programme of the Belgian State (INANOMAT P6/17), the Federation Wallonie-Bruxelles and the National Lottery (FRFC), and the Helmholtz Gemeinschaft Deutscher Forschungzentren (grant VH NG-407) for financial support. They also acknowledge the Fonds pour la formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA) for the research fellowship allotted to D. V. We are also grateful to P. Eloy and M. Genet for assistance with XPS in "pseudo in situ" mode, Prof. O. Riant and Charles Vriamont for organic chemistry developments, the Nanocyl company for supplying MWCNT, Applied Sciences Inc. for supplying CNF and J.-F. Statsijns for technical support.
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