Large-scale preparation of carbon-encapsulated cobalt nanoparticles by the catalytic method

B. H. Liu, J. Ding*, Z. Y. Zhong, Z. L. Dong, T. White, J. Y. Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

110 Scopus citations

Abstract

With strategical selection of the water-soluble sodium chloride (NaCl) as the supporting material, we realized large-scale production of carbon-encapsulated cobalt nanoparticles with a productivity of almost 100%. The products can be fully separated from the supporting materials by simple washing process. When NaCl, NaF and Al2O3 were used as supporting materials, the morphologies of the carbon products changed from carbon-encapsulated magnetic nanoparticles (CEMNs) to an intermediate state (quasi-nanocages) between CEMNs and carbon nanotubes (CNTs), and then to CNTs, respectively. NaCl shows strong inhibiting effects on the growth of CNTs, favoring the formation of CEMNs.

Original languageEnglish
Pages (from-to)96-102
Number of pages7
JournalChemical Physics Letters
Volume358
Issue number1-2
DOIs
StatePublished - 24 May 2002
Externally publishedYes

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