Lj. Ci et al., Controllable growth of single wall carbon nanotubes by pyrolizing acetylene on the floating iron catalysts, CHEM P LETT, 349(3-4), 2001, pp. 191-195
Single wall carbon nanotubes (SWNTs) without amorphous carbon coating were
prepared by thermally decomposing acetylene (C2H2) at the temperature range
750-1200 degreesC in a floating iron catalyst system. The C2H2 partial pre
ssure was controlled to make a carbon supply limiting growth of SWNTs. The
higher reaction temperature above 1100 degreesC seemed not to favor the SWN
T production due to the quick thermal decomposition of C2H2. (C) 2001 Elsev
ier Science B.V. All rights reserved.