Figure 8.
Elemental analysis of (a) the surface of the copper foil and (b) the copper foil surface treated with sodium chloride solution. (c) Comparison of element proportion on the copper foil surface treated with sodium chloride solution.
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.