Figure 7.
The pore size distributions of CNF aerogels via two kinds of drying methods: (a) supercritical CO2 drying method and (b) liquid nitrogen freeze-drying technology.
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.