. 2018 Nov 25;2018:8526190. doi: 10.1155/2018/8526190
Copyright © 2018 Huiling Lv et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
The SEM (a) and TEM (b) images of SNF.