Figure 2.

SEM and TEM images. (a) SEM and (b) TEM images of SU-CNTs, SEM images of (c) acid-treated SU-CNTs (i.e., metal core removed) and (d) Ni-Al bimetallic nanoparticles, and (e) photograph and (f) SEM image of ABS/SU-CNT composite thin film prepared by hot pressing.