We investigated the effect of a rotating anode on the formation of single-walled carbon nanotubes (SWNTs) using the plasma rotating electrode process. With rotation of the anode, the diameter distribution of SWNTs was shifted toward smaller diameters, and the yield of SWNTs increased. In addition, optical emission spectroscopy confirmed the increase of plasma temperature by rotating anode. These results indicate that the diameter distribution of SWNTs and the increase of SWNT yield resulted from the change of discharge characteristics by rotation of the anode.
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