Figure 4
From: Two Sprayer CVD Synthesis of Nitrogen-doped Carbon Sponge-type Nanomaterials
TEM images of a sample synthesized at 1020 °C for 40 min. The sample was obtained from the S4 zone. (a) Junctions formed from carbon nanotubes. (b) Graphitic nanoribbons with rolled-up edges. (c) Carbon nanotubes with anchored metal nanoparticles. (d), (e), and (f) close-up images of carbon nanotubes. (g) and (h) HRTEM images of metal nanoparticles inside carbon nanotubes. (i) FFT refinement from the enclosed area shown in (h). The determined interlayer distance corresponds to 2.06 Å, which is attributed to the crystallographic plane (−1 1 1) of α-Fe.
