In situ formation of noble metal nanoparticles on multiwalled carbon nanotubes and its implication in metal-nanotube interactions

Manuela Scarselli*, Luca Camilli, Paola Castrucci, Francesca Nanni, Silvano Del Gobbo, Eric Gautron, Serge Lefrant, Maurizio De Crescenzi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

A simple method to decorate multiwalled carbon nanotubes (MWCNTs) with Au, Ag and Cu nanoparticles is illustrated. The method consists in directly depositing the selected metals by thermal evaporation on the carbon nanotubes. Comparative measurements carried out on samples that differ in the quantity and type of the deposited metal, reveal that isolated discrete particles form on the nanotube outer wall for all three metals. The CNT-based composites have been investigated by scanning and transmission electron microscopy to determine the size, shape and distribution of the nanoparticles. The results indicate that the quantity of evaporated metal only affects the nanoparticle size and not the average particle density. Particle composition was determined by X-ray photoelectron spectroscopy study. The results are discussed in terms of metal nanoparticle-tube interactions, an important issue for the fundamental and practical applications of similar MWCNT based composites.

Original languageEnglish (US)
Pages (from-to)875-884
Number of pages10
JournalCarbon
Volume50
Issue number3
DOIs
StatePublished - Mar 1 2012

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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