Figure 4.
XPS Fe 2p depth profile of the Fe3O4/FeO particles fabricated at 177 mJ/pulse cm2.
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.