Fig. 1. SEM images of (A) Cu–CeO2; (B) Cu0.66Co0.34–CeO2; (C) Cu0.50Co0.50–CeO2; (D) Cu0.34Co0.66–CeO2; (E) Co–CeO2; (F) CeO2.
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.