Figure 5 SEM images. (a, b) SEM images of the carbon nanotubes grown in the 750°C process, Fe + S1813 series (C 2 H 4  + S1813 + Fe, see Table  1 ). Nanotubes protruding from the membrane channels are clearly visible in (b) . (c, d) SEM images of the carbon nanotubes grown in the 750°C process, Fe + S1813 + Plasma series (C 2 H 4  + S1813 + plasma). (e, f) Nanotubes grown in the ‘900°C’ process, Fe + S1813 + Plasma series (CH 4  + S1813 + plasma).
Jinghua Fang, Igor Levchenko, Zhao Jun Han, Samuel Yick, Kostya Ken Ostrikov
CC BY 4.0
Jinghua Fang et. al. "Carbon nanotubes on nanoporous alumina: from surface mats to conformal pore filling", Nanoscale Research Letters <a rel="nofollow" class="external text" href="https://doi.org/10.1186/1556-276X-9-390">doi:10.1186/1556-276X-9-390</a>