Supported Ni catalysts from nominal monolayer grow single-walled carbon nanotubes

Kazunori Kakehi, Suguru Noda, Shohei Chiashi, Shigeo Maruyama

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Fe, Co, and Ni are catalytically effective for growing single-walled carbon nanotubes (SWNTs). On substrates, however, Ni tends to yield only multi-walled carbon nanotubes. Because enhanced surface diffusion at the elevated growth temperature required for deposition might cause coarsening of Ni catalyst nanoparticles, adjusting the nominal Ni thickness should be crucial for controlling the particle size. Using our previously developed combinatorial method, we prepared a thickness profile of Ni on a quartz glass (SiO2) substrate and found that Ni nanoparticles catalyzed the growth of SWNTs by chemical vapor deposition only when nominal Ni thickness was in the monolayer range.

Original languageEnglish
Pages (from-to)381-385
Number of pages5
JournalChemical Physics Letters
Volume428
Issue number4-6
DOIs
Publication statusPublished - 2006 Sep 20
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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