Preparation of monodispersed Fe-Mo nanoparticles as the catalyst for CVD synthesis of carbon nanotubes

Journal Article (Journal Article)

Uniform iron-molybdenum nanoparticles were prepared by thermal decomposition of metal carbonyl complexes using a mixture of long-chain carboxylic acid and long-chain amine as protective agents. The sizes of the nanoparticles can be systematically varied from 3 to 14 nm by changing the experimental conditions. High-resolution TEM images and EDX data show that the prepared nanoparticles are highly crystalline iron nanoparticles containing ≈4% molybdenum. The effects of the concentration, reaction time, the ratio of metal carbonyl complexes versus protective agents, and the ratio of acid/amine of the protective agents on the sizes of the produced nanoparticles were systematically studied. The prepared nanoparticles were used as catalysts for single-walled carbon nanotube growth and the results indicate that there is an upper limit for the size of the catalyst particles to nucleate single-walled carbon nanotubes.

Full Text

Duke Authors

Cited Authors

  • Li, Y; Liu, J; Wang, Y; Zhong Lin Wang,

Published Date

  • September 26, 2001

Published In

Volume / Issue

  • 13 / 3

Start / End Page

  • 1008 - 1014

International Standard Serial Number (ISSN)

  • 0897-4756

Digital Object Identifier (DOI)

  • 10.1021/cm000787s

Citation Source

  • Scopus