Fig. 4.
The nitrogen adsorption/desorption curves and pore size distribution curves of a BC, b BC/GO-1, c BC/GO-2, and d BC/GO-3
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.