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Fluidized bed chemical vapor deposition of copper nanoparticles on multiwalled carbon nanotubes

Lassègue, Pierre and Noé, Laure and Monthioux, Marc and Caussat, Brigitte Fluidized bed chemical vapor deposition of copper nanoparticles on multiwalled carbon nanotubes. (2017) Surface and Coatings Technology, 331. 129-136. ISSN 0257-8972

(Document in English)

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Official URL: https://doi.org/10.1016/j.surfcoat.2017.10.046


Multi-walled carbon nanotubes tangled in easy-to-fluidize porous balls have been decorated by pure copper nanoparticles using a pre-industrial fluidized bed chemical vapor deposition process. Copper (II) acetylacetonate Cu(acac)2 was used as precursor. The low precursor volatility led to low deposition rates, responsible for a nonuniformity of the deposit both on the MWCNT balls and from the outer part to the center of the balls. An oxidative pre-treatment of the MWCNTs allowed to increase slightly the deposit weight and uniformity, by creating new nucleation sites on the nanotube surface. It also allowed decreasing the size of Cu nanoparticles by a factor of ten. A decrease of the deposition temperature increased more markedly the deposit weight, by probably favoring the formation of gaseous reactive intermediate species more reactive on the oxidized nanotube surface. A more efficient precursor delivery system would allow reaching higher deposition rates and much more uniform deposits, making possible an industrial production of metallized carbon nanotubes

Item Type:Article
Additional Information:Thanks to Elsevier editor. The original PDF of the article can be found at Surface and Coatings Technology website : https://doi.org/10.1016/j.surfcoat.2017.10.046
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Midi Pyrénées region - French WASP (Weight Saving for Aerospace Packaging Equipments)
Deposited On:07 Dec 2017 11:15

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