Novel Alloy Could Produce Hydrogen Fuel from Sunlight
Found on Science Daily on Wednesday, 31 August 2011
When the alloy is immersed in water and exposed to sunlight, the chemical bond between the hydrogen and oxygen molecules in water is broken. The hydrogen can then be collected.
Because pure hydrogen gas is not found in free abundance on Earth, it must be manufactured by unlocking it from other compounds. Thus, hydrogen is not considered an energy source, but rather an "energy carrier." Currently, it takes a large amount of electricity to generate hydrogen by water splitting.
That would mean that electric "green" cars could finally be really green.