Figure 10.
SEM images of Ch-CA-G0 (a1, a2), Ch-CA-G1 (b1, b2), Ch-CA-G2 (c1, c2), and Ch-CA-G3 (d1, d2) surface.
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.