Artificial Leaf that turns carbon dioxide into carbon monoxide and oxygen

This artificial leaf is being tested in the lab at the moment. Here it is given pure carbon dioxide under pressure. They can not be used outside, because they can not get clean and pressurized carbon dioxide.

source http://www.ncairways.co/renewable-energy/%e0%a4%aa%e0%a5%8d%e0%a4%b0%e0%a4%be%e0%a4%95%e0%a5%83%e0%a4%a4%e0%a4%bf%e0%a4%95-%e0%a4%aa%e0%a4%a4%e0%a5%8d%e0%a4%a4%e0%a5%80-%e0%a4%b8%e0%a5%87-10-%e0%a4%97%e0%a5%81%e0%a4%a8%e0%a4%be-%e0%a4%9c/