This latest study, which also included researchers from Northwestern University and the Carnegie Institution of Washington, indicated that under conditions like those found in the mantles of Mars, the Moon and other bodies, carbon is trapped in the magmas mainly as a species called iron carbonyl
and released as carbon monoxide and methane gas.
It had been presented some time ago that free iron on Mars, activated by the catalysis of temperature and ultraviolet or shorter wavelength radiation, could combine with carbon monoxide to form one or another of the iron carbonyls
, which range in color from a yellow-orange to green.
This new series of products provides sub-parts per billion removal of molecular contaminants including moisture, oxygen, carbon dioxide, carbon monoxide, iron carbonyls
and nickel carbonyls.