Artificial Photosynthesis
... they (researchers) have been able to duplicate the first step - breaking up water molecules by using photons found in sunlight. Nano sized crystals of Cobalt Oxide - a photo reactive metal oxide catalyst, have been found to do the job more efficiently than Mother Nature herself!
There may be some hope for hydrogen production directly from sunlight. This could eventually prove more efficient than electrolysis using electricity produced from solar power.
This could eventually enable a solar/hydrogen-economy.
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