Decoration of Carbon Nanotubes by Semiconducting or Metallic Nanoparticles using Fluidized Bed Chemical Vapour Deposition

• Lassègue Pierre

  Université de Toulouse, Laboratoire de Génie Chimique, France

• Coppey Nicolas

  Université de Toulouse, Laboratoire de Génie Chimique, France

• Noé Laure

  Centre d’Élaboration de Matériaux et d’Etudes Structurales (CEMES), UPR-8011 CNRS, France

• Monthioux Marc

  Centre d’Élaboration de Matériaux et d’Etudes Structurales (CEMES), UPR-8011 CNRS, France

• Caussat Brigitte

  Université de Toulouse, Laboratoire de Génie Chimique, France

抄録

Multi-Walled Carbon Nanotubes (MWCNTs) have promising properties that make them potentially useful in a wide variety of applications. The decoration of MWCNTs by metallic or semiconducting nanoparticles aims to intensify some of their properties, in particular thermal and electrical conductivity. Fluidized Bed Chemical Vapour Deposition (FBCVD) is an efficient process to uniformly coat powders by various materials. The coating by SnO₂, Fe and Si nanoparticles of MWCNTs (Graphistrength^®) tangled in balls of 360 microns in mean diameter using the FBCVD process has been studied. The influence of some deposition parameters with and without oxidative pre-treatment is analysed on the nucleation and growth of nanoparticles. The various results obtained indicate that the intrinsic surface reactivity of MWCNTs is high enough for CVD precursors involving the formation of highly reactive unsaturated species such as silylene SiH₂ formed from silane SiH₄ pyrolysis in the case of Si deposition. But it must be enhanced for less reactive CVD precursors such as tin tetrachloride SnCl₄ which needs the presence of oxygen-containing groups at the nanotube surface to allow Sn nucleation. So, provided the reactivity of the powder surface and that of the CVD precursors are well tuned, the FBCVD process can uniformly coat the outer surface of MWCNTs by metallic or semiconducting nanoparticles.

収録刊行物

• KONA Powder and Particle Journal

  KONA Powder and Particle Journal 33 (0), 322-332, 2016

  公益財団法人 ホソカワ粉体工学振興財団

キーワード

• fluidized bed
• chemical vapour deposition
• multi-walled carbon nanotubes
• nanoparticle deposition
• silicon
• tin oxide
• iron

詳細情報

• CRID: 1390282680490061056
• NII論文ID: 130005129072
• NII論文ID: 40020700805
• NII書誌ID: AA10690964
• DOI: 10.14356/kona.2016018
• ISSN: 21875537
• ISSN: 02884534
• NDL書誌ID: 027038025
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027038025
• Web Site: https://www.jstage.jst.go.jp/article/kona/33/0/33_2016018/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可