Pressure-induced single-walled carbon nanotube (n,m) selectivity on Co-Mo catalysts

Bo Wang, Li Wei, Lu Yao, Lain-Jong Li, Yanhui Yang, Yuan Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

We report the selective growth of bulk single-walled carbon nanotube (SWCNT) samples enriched with three different dominant chiralities including (6,5), (7,5), and (7,6) through adjusting the pressure of carbon monoxide on Co-Mo catalysts from 2 to 18 bar. Semiconducting SWCNT abundance was evaluated via photoluminescence, optical absorption, and Raman spectroscopy based on a single-particle tight-binding theoretical model, indicating that the abundance of each chiral tube can be systematically altered by changing the carbon monoxide pressure.

Original languageEnglish (US)
Pages (from-to)14612-14616
Number of pages5
JournalJournal of Physical Chemistry C
Volume111
Issue number40
DOIs
StatePublished - Oct 11 2007

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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