Chemisorbed nickel catalyst for the production of SWCNTs with a very narrow size distribution
| Autor: | Svetlana Yu. Tsareva, Bernard Humbert, Cédric Carteret, Brian Grégoire, Lionel Aranda, Yves Fort, Manuel Dossot, Xavier Devaux, Jean-Yves Mevellec, Emanuel Lamouroux, E. McRae |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Nanoparticle chemistry.chemical_element Nanotechnology 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials law.invention Catalysis Thermogravimetry Silanol chemistry.chemical_compound Nickel Chemical engineering chemistry law Monolayer Fourier transform infrared spectroscopy 0210 nano-technology |
| Zdroj: | physica status solidi (b). 250:2581-2585 |
| ISSN: | 0370-1972 |
| DOI: | 10.1002/pssb.201300090 |
| Popis: | The synthesis of single-walled carbon nanotubes (SWCNTs) with the narrowest possible diameter distribution is a challenging undertaking in carbon nanoscience, which can be overcome through the fabrication of monodisperse catalytic nanoparticles. A technique is presented here to approach the diameter control of SWCNTs using a chemisorbed nickel acetylacetonate monolayer at the surface of silica. We show by Fourier transform infrared spectroscopy and thermogravimetry coupled with mass spectroscopy that a monolayer of nickel acetylacetonate is anchored with the silanol groups at the surface of the substrate. After thermal decomposition, the nickel remains bonded with these silanol groups, resulting in a good dispersion of the nickel over the silica surface. Using this catalyst, SWCNTs with a narrow diameter distribution were synthesized at moderate temperature. This opens new perspectives for the fabrication of uniform-diameter carbon nanotubes. |
| Databáze: | OpenAIRE |
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