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.
In situ Mossbauer spectra of (a) 4Fe after reduction, (b) 4Fe after 20 h TOS, (c) 4FeP after reduction, and (d) 4FeP after 20 h TOS. Reduction: 350 °C, 2 bar, Ar/H2 = 2, 2 h. FTO: 340 °C, 20 bar, H2/CO = 1, TOS = 20 h. (3 Fe sites for Hägg carbide: magenta, red, and purple; 1 Fe site for ε′ carbide: dark cyan; 3–4 Fe sites for Fe1–xO: violet, olive, navy, blue).
