hydrogen
The question is not 'can hydrogen fuel a motor'. That has been proven for at least 50 years. Hydrogen can indeed be used in motors. Please see any major automobile company that is making them.
The more specific question to be addressed is can hydrogen be created
"on demand"?
Please focus on this detail when addressing this subject. It makes discussing it much more clear and to the point.
Any 6th grade kid can tell you from his science class that a 9 volt battery will produce 'some' hydrogen when channeled into water. The major obstacle is conservation of energy.
Water is a
very unusual substance. We think of in usually in a traditional model that it can be in the form of a liquid like the ocean, gas like in the clouds, or ice like in an iceburg. Water however is much more complex. It is the only known liquid to defy thermodynamic properties of freezing- Hot water tends to freeze faster than cold- however it cannot overcome the sheer thermodynamics. For just one example.
www.lsbu.ac.uk/water/phase.html for further reading oh phases of water.
This next jump is a faith based one, because I haven't invented it yet. I would bet all I have that their are
many methods of producing hydrogen from water in which the output potential of the hydrogen produced is much greater than it's input to produce.
This is the greatest hurdle to overcome in this whole process. The rest is a matter of containment, guages, regulators and the like.
http://www.i4u.com/article5953.html
A $40 toy car that runs on hydrogen.
For certain, I would never drive a vehicle with a large tank filled with Hydrogen strapped to it, as safe as they try to make it. On demand must be the way to go.
Global energy usage has been closely monitored for, well a long time. An unlimited renewable power source would dramatically change geopolitics overnight.
my .02