Delivery of catalytic metal species onto surfaces with dendrimer carriers for the synthesis of carbon nanotubes with narrow diameter distribution

Hee Cheul Choi, Woong Kim, Dunwei Wang, Hongjie Dai

Research output: Contribution to journalArticle

134 Citations (Scopus)

Abstract

Polyamidoamine (PAMAM) dendrimers are used as carriers to deliver complexed Fe(III) ions uniformly onto silicon oxide substrates for the formation of iron oxide nanoparticles with a narrow diameter in the range of 1-2 nm. Chemical vapor deposition (CVD) synthesis with these nanoparticles affords single-walled carbon nanotubes (SWNTs) with a diameter distribution in the range of 1-2 nm, much narrower than that for SWNTs grown from commonly used powder-supported catalyst (1-5 nm) and from artificial ferritin derived nanoparticles (1-3 nm). Thus, the current work represents a step further toward the synthesis of monodispersed SWNTs via the approach of chemically controlling the formation of discrete catalyst nanoparticles.

Original languageEnglish
Pages (from-to)12361-12365
Number of pages5
JournalJournal of Physical Chemistry B
Volume106
Issue number48
DOIs
Publication statusPublished - 2002 Dec 5

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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