Solar route to zinc
scientistshave found a way to use solar energy to extract zinc metal, which readily reacts with water to produce hydrogen. With some improvements, the process can be used to produce hydrogen for vehicles powered with fuel cells that would emit just water.
Researchers at the Weizmann Institute of Science in Rehovot, Israel, used 64 seven-metre-wide mirrors to focus sunlight onto a tower containing the mineral zinc oxide and charcoal. The solar energy heated the chemical reactor to 1,200