fig3
Figure 3. Characteristic change according to heat treatment temperature. (A) The weight ratio of the SiNP@C@Si started to decrease until 700 °C and then increased until 900 °C; TEM images of (B-D) SiNP@C@Si; (E-G) 600 °C; (H-J) 700 °C and (K-M) 800 °C. TEM: Transmission electron microscopy.
