Figure 2

Morphology and structure.
SEM images of (a) pristine CNT and (b,c) CNT@TiO2-C nanocable; (d) TEM image and (e) HR-TEM image of CNT@TiO2-C nanocable; (f) Fast Fourier transform pattern of (e); (g) Annular dark-field scanning transmission electron microscopy (ADF-STEM) Z-contrast image of CNT@TiO2-C nanocable and electron energy loss spectrum of the TiO2 supported on the CNT.