A doctoral student at the University of Delaware has developed a prototype for a self-sustaining, emissions-free solar reactor that produces hydrogen fuel.
"The reactor is capable of using sunlight to increase the heat inside its cylindrical structure above 3,000 degrees Fahrenheit. Zinc oxide powder is then gravity fed through 15 hoppers into the ceramic interior where it converts to a zinc vapor. At that point the vapor is reacted with water separately, which in turn produces hydrogen."
"If the reactor proves to be a success it can apparently be scaled up relatively easily to produce hydrogen at an industrial level."