A model of carbon-nanotube growth-rate limitation on thin-film catalysts
| Autor: | A. A. Dudin, A. P. Sirotina, A. V. Lakalin, S. V. Bulyarskiy, A. A. Shamanaev, Elena M. Eganova, A. A. Pavlov, E. P. Kitsyuk |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Physics and Astronomy (miscellaneous) Intermetallic chemistry.chemical_element Nanotechnology 02 engineering and technology Carbon nanotube 021001 nanoscience & nanotechnology 01 natural sciences Carbide Catalysis law.invention chemistry Chemical engineering law 0103 physical sciences Growth rate Thin film 0210 nano-technology Carbon Layer (electronics) |
| Zdroj: | Technical Physics Letters. 43:366-368 |
| ISSN: | 1090-6533 1063-7850 |
| DOI: | 10.1134/s1063785017040198 |
| Popis: | It is experimentally established and theoretically justified that a decreasing growth rate of carbon nanotubes (CNTs) on thin-film catalysts may be caused by the formation of intermetallic compounds that hinder supply of carbon from the bulk. In particular, the growth of CNTs on the Ti–Ni thin-film system is accompanied by the formation of a titanium carbide layer on the surface of a catalyst droplet. The kinetics of CNT growth under these conditions is calculated, and kinetic coefficients determining the growth rate are evaluated. |
| Databáze: | OpenAIRE |
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