The use of NH3 to promote the production of large-diameter single-walled carbon nanotubes with a narrow (n,m) distribution
Research output: Contribution to journal › Article › Scientific › peer-review
We demonstrate here a simple and effective (n,m)-selective growth of single-walled carbon nanotubes (SWCNTs) in an aerosol floating catalyst chemical vapor deposition (CVD) process by introducing a certain amount of ammonia (NH3). Chiralities of carbon nanotubes produced in the presence of 500 ppm NH3 at 880 ̊C are narrowly distributed around the major semiconducting (13,12) nanotube with over 90% of SWCNTs having large chiral angles in the range 20̊-30̊, and nearly 50% in the range 27̊-29̊. The developed synthesis process enables chiral-selective growth at high temperature for structurally stable carbon nanotubes with large diameters.
|Number of pages||4|
|Journal||Journal of the American Chemical Society|
|Publication status||Published - 9 Feb 2011|
|MoE publication type||A1 Journal article-refereed|