Comment Re:Hydrogen fuel-Looking forward to the car (Score 2) 85
Using Electrolysis is very energy inefficiently, that why its only worth it in certain places eg. over production in nuclear power plants or on very small scales such as Labs.
The gallium is used as a catalyst for the reaction the pure aluminium is used and turned into aluminium oxide which can be recycled using the over production of power in nuclear power plants.
The other key component is the water which is probably better to use distilled but not critical as any mineral deposits can be reprocessed during the recycling of the gallium and alu-oxide.
As the distillation process also uses power and quite a lot of it the use of Electolyzer/Electrolysis will not be a big part of the Hydrogen Fuel economy - its not efficient enough.
Currently our best hope for cheap carbon effiecnt energy is small scale SSTAR rector's (2015 ish), if you deffo want Hydrogen power then currently the low cost of gallium/alu production seems very good, with very few long term draw backs.
IMHO