Researchers work on metal oxides to store solar energy

A team of researchers at Stanford University has tried to work on metal oxides, like rust, to convert solar energy into electricity and store it by splitting water into hydrogen and oxygen.

The team, led by William Chueh, an assistant professor of materials science and engineering, and Nicholas Melosh, an associate professor in the same department, tested three metal oxides -- bismuth vanadium oxide, titanium oxide and iron oxide, more commonly known as rust.