Figure 1.
SEM and TEM image [32]: (a) SEM image of multilayer GO material; (b)TEM image of GO nanosheet.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.