The Synthesis of Peculiar Structure of Springlike Multiwall Carbon Nanofibers/Nanotubes via Mechanothermal Method
Figure 5
SEM images of MAed graphite powders for 150 h after one-step and two-step annealing with different morphologies: (a) high yield springlike MWCNFs (two-step), (b) individual MWCNFs with ultrahigh aspect ratio (two-step), (c) springlike MWCNFs encapsulated with carbon nanotubes (two-step), (d) S-MWCNF with an ultrahigh crystallinity structure (two-step), (e) high yield springlike MWCNTs (one-step), and (f) aligned arrays of MWCNTs (one-step).
