Figure 2.
SEM micrograph of the functional parts in (a) MQ-3 and (b) MiCS-5914 sensor (insets: sensitive MOx layer at higher magnification).
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.