| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Launois, Pascale
French National Centre for Scientific Research
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022Strain-induced changes of the X-ray diffraction patterns of cross-linked poly(dimethylsiloxane): the texture hypothesis ; Changement sous contrainte des images de diffraction des rayons X du poly-dimethylsiloxane) : l'hypothèse texturalecitations
- 2022Strain-induced changes of the X-ray diffraction patterns of cross-linked poly(dimethylsiloxane): the texture hypothesiscitations
- 2020Influence of the Al/Ge Ratio on the Structure and Self-Organization of Anisometric Imogolite Nanotubescitations
- 2019Nanomaterials From Imogolite: Structure, Properties, and Functional Materialscitations
- 2016A liquid-crystalline hexagonal columnar phase in highly-dilute suspensions of imogolite nanotubescitations
- 2014Vertically aligned carbon nanotube-based composite: Elaboration and monitoring of the nanotubes alignmentcitations
- 2013Intracellular fate of carbon nanotubes inside murine macrophages: pH-dependent detachment of iron catalyst nanoparticles.citations
- 2009Insights into the mechanism of the gas-phase purification of HiPco SWNTs through a comprehensive multi-technique studycitations
- 2008Vanadium Oxide-PANI Nanocomposite-Based Macroscopic Fibers: 1D Alcohol Sensors Bearing Enhanced Toughnesscitations
- 2005NEXAFS and X-ray scattering study of structure changes after post-annealing treatments of aligned MWNTscitations
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article
Insights into the mechanism of the gas-phase purification of HiPco SWNTs through a comprehensive multi-technique study
Abstract
While the purification of carbon nanotubes may be considered as an already sorted matter, their use in some highly demanding. fields such as electrochemistry, biological studies or magnetism may be precluded by the remaining catalyst and carbonaceous impurities. For these purposes, the widely-used purification methods need to be improved. In this paper, a comprehensive study of the well-known gas-phase purification procedure of single wall nanotubes (SWNTs) is performed, which aims at depicting the nature and the amount of the remaining impurities, of both the catalyst and carbon types, and at getting insights into its mechanism. This has been achieved by cross-referencing data emerging from transmission electron microscopy (TEM), electron energy loss spectroscopy (EELS), electron diffraction, magnetization measurements, X-ray diffraction (XRD) and Raman spectroscopy. We demonstrate that this method can lead to the elimination of the largest part of the impurities while maintaining fairly good yields. According to the mechanistic picture we have drawn, we suggest some possible improvement to the procedure that should lead to fully purified SWNTs with limited subsequent losses.