A semiconductor material can be altered and used to produce hydrogen from water using sunlight. The research was funded by the U.S. Department of Energy and the results are published in the Physical Review Journal. The antimony-gallium nitride alloy uses solar light energy to extract hydrogen and oxygen by slitting water molecules. The process is known as photoelectrochemical water splitting.
Hydrogen is used as a fuel to rockets and now scientists try to find an efficient way to use it as a fuel to cars. When hydrogen is combusted, it is joined with oxygen and forms water and that makes hydrogen a zero-emissions fuel.
Source: [International Business Times]