Figure 14.
Schematic indicating the sensing mechanism on the SnO2 surface. Left column indicates reaction with oxygen, whereas right column shows the interaction with reducing gas like CO.
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.