An FESEM image of a Ti-Fe-O nanotube array. Click to enlarge.
An FESEM image of a Ti-Fe-O nanotube array. Click to enlarge.
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How does a photon of visible light turn into an atom of hydrogen?
....And Gore said, “Let there be Hydrogen!” and there was hydrogen...........
Did you happen to see the other story at Greencar about the 200+mph fuel cell car test at Bonneville?......
a form of iron called hematite, a low band gap semiconductor material,
***I didn’t know Iron was considered a semiconductor. I suppose you could consider Carbon a high bandgap semiconductor, so Iron by that definition would be a low bandgap semi...
So that would be roughly 7 liters of hydrogen per square meter of sun light (lot of assumptions in that number)? Maybe 100 L per day?
Hope the efficiency improves a couple orders of magnitude. At that rate, gonna take a LOT of ground to make enough hydrogen to power this nation.
Though I suppose this could also lead to advances in electrolysis production of hydrogen (say from nuke power).
The still haven’t explained how they’re gonna store H2 for automobile usage. Gasoline, at least, is a liquid at room temperature.