Tailoring (n,m) structure of single-walled carbon nanotubes by modifying reaction conditions and the nature of the support of CoMo catalysts

The (n,m) population distribution of single-walled carbon nanotubes obtained on supported CoMo catalysts is determined by photoluminescence and optical absorption. It is found that the (n,m) distribution can be controlled by varying the gaseous feed composition, the reaction temperature, and the type of catalyst support used.