justrobin - 5:43 am on Sep 2, 2011 (gmt 0)
Through theoretical computations, they've demonstrated that an alloy formed by a two percent substitution of antimony in gallium nitride has the right electrical properties to enable solar light energy to split water molecules into hydrogen and oxygen, a process known as photoelectrochemical (PEC) water splitting.
If the fuel is taken from tap water then this will be a cheap fuel. But if the costs of the alloy is the issue then it will be a big problem. Looking forward to see this great discovery in action.