New alloy produces hydrogen using sunlight

[Archean]

According to the researchers, an alloy formed by a 2 percent substitution of antimony (Sb) in gallium nitride (GaN) can be partially submerged in water to break the chemical bond between the hydrogen and oxygen molecules in water, as long as the alloy is exposed to sunlight. In effect, the alloy serves as a novel photoelectrochemical (PEC) catalyst that would allow the simple production of hydrogen.