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NanoStructured Carbons and Kin

Structure, properties and behaviours

W. Bacsa, L. Calmels, P. Lecante, M. Monthioux, L. Noé, P. Puech, V. Serin, E. Snoeck
Postdocs, contractors: J. Mittal (CRA CNRS, 2004-2005), Z. Zhou (Cold Plasmas Network + CNRS grant, 2005, with CPAT)
PhD student: J.-P. Cleuziou (French MRES grant, 2004-07, with GNS group)

Back in 1998, the team contributed to initiate hybrid SWNTs as a new field of research, via the discovery of ‘‘peapods’’ (Smith et al., Nature 396(1998)323). Since then, we carry-out extensive studies of the ability of SWNTs (and MWNTs) in being filled (or doped) with foreign atoms, molecules, or compounds. The work involves the synthesis, and/or characterisation, and/or property measurements of hybrid SWNTs, MWNTs, and fullerenoïds, ultimately aiming in remarkable – and hopefully unprecedented - individual properties regarding magnetism, transport, magneto-transport, tribology, or even chemical reactivity.

Measurements of collective properties are also considered, enabling interesting comparisons with the latter when possible, via the previous shaping of the hybrid nanotubes as spun microsized fibres (collaboration with CRPP Bordeaux) or thin composite films (from spin-coating), in which carbon nanophases are aligned (1D, 2D) and combined with the appropriate matrix (typically a polymer) in various proportions.

The study of kin materials (e.g., BN, WS2, …) is also considered, for providing an even wider range of properties, behaviours, and potential applications. Interfacial phenomena (graphene/filling-material, or graphene/matrix interactions) are given a specific attention, due to the local modifications of physical properties (e.g., magnetism) likely to be induced. The latter aspects are specifically studied by electron energy loss spectroscopy (EELS) by comparing experimental and calculated spectra. EELS is also a key technique to investigate the chemical composition of encapsulated nanophases.



Main collaborations:

• LAAS (Toulouse):
  patterning and contacting facilities
• LNMCP (Toulouse):
  Magneto-transport measurements
• LPST (Toulouse):
  Raman spectroscopy, optical properties
• CRPP (Bordeaux):
  spinning of nanotube-based fibres.
• LPS-O (Orsay):
  X-ray diffraction studies, EELS spectroscopy
• University of Budapest (Tcheque Republic):
  CN film synthesis
• University of Sussex (England):
  Fe@MWNT single step synthesis
• Technological University of Poznan (Poland):
  Supercapacitors
• Institut Néel (Grenoble) :
  supraconductivité induite
Click on the pictures for more information!

Example 1: EELS spectra-metallic SWNTs


Example 2: EELS analysis


Example 3: EELS spectra (carbon K near-edge fine structures)



Example 4: X@SWNT hybrid nanotubes



Example 5: CrO3@SWNT


Example 6: Fe@MWNT hybrid nanotube


Example 7 : AFM image of Nano-SQUID

 


Some related publications


• Grillo, S., N. Hellgren, V. Serin, E. Broitman, C. Colliex, L. Hultman, and Y. Kihn, Monitoring the structural and chemical properties of CNx thin films during in-situ annealing in a TEM. Eur. Phys. J AP, 2001. 13: p. 97-105

• Hellgren, N., N. Lin, E. Broitman, V. Serin, S. Grillo, R. Tewesten, I. Petrov, C. Colliex, L. Hultman, and J.E. Sungren, Thermal stability of carbon nitride thin films. J. Mater. Res., 2001. 16: p. 3188-3201

• Laffont, L., M. Monthioux, and V. Serin, Plasmon as a tool for in situ evaluation of physical properties for carbon materials. Carbon, 2002. 40: p. 767 – 780

• Laffont, L., M. Monthioux, V. Serin, R. Mathur, C. Guimon, and M. Guimon, An EELS study of the structural and chemical transformation of PAN polymer to solid carbon. Carbon, 2004. 42(12 - 13): p. 2485 - 2494.

• Monthioux M., Serp P., Flahaut E., Razafinimanana M., Laurent C., Peigney A., Bacsa W., Broto J.-M. Introduction to carbon nanotubes. In : Nanotechnology Handbook, (ed. B. Bhushan), Springer-Verlag, Heidelberg, Germany, 2004. p. 39-98.

• Bertoni, G., L. Calmels, A. Altibelli, and V. Serin, First-principles calculation of the electronic structure and EELS spectra at the graphene/Ni(111) interface. Physical Review B, 2005. B71: p. 075402-1 - 0775402-8

• Kovács, G.J., A. Koós, G. Bertoni, G. Sáfrán, O. Geszti, V. Serin, C. Colliex, and G. Radnóczi, Structure and spectroscopic properties of C–Ni and CNx–Ni nanocomposite films. J. Appl. Phys., 2005. 98: p. 034313

• Lambin P., Loiseau A., Monthioux M., Thibault J. (2005) Structural analysis by elastic scattering techniques. In : Understanding Carbon Nanotubes: from Science to Applications (eds. A. Loiseau, P. Launois, P. Petit, S. Roche, J.-P. Salvetat), Springer-Verlag, Berlin, 2006.

• Cleuziou J.-P., Wernsdorfer W., Bouchiat V., Ondarçuhu Th., Monthioux M. (2006) Carbon nanotube superconducting quantum interference device. Nature Nanotechnol. 1, 53-59

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