USC liberation method (via USC)
A problem with hydrogen for use as a fuel comes when the vehicle is in a crash. The hydrogen leaks out, and any sparks or fire will ignite the gas. Another problem is a hydrogen fire is invisible. (I toured a manufacturing facility once where they had hydrogen tanks for use in the factory. They had the "broom test" for testing if there is a hydrogen fire. People would walk down a hallway waiving brooms in front of them to see if the bristles catch fire. It is a scary thought. The same would happen with hydrogen vehicles.)
The use of hydrogen as a fuel is still on its way to reality. A common method of making hydrogen safe for transport is placing it into a harmless chemical. One method is a formic-acid storage. Another popular option is ammonia borane, a nitrogen-boron complex.
The University of Southern California (USC) has developed a way to extract hydrogen from ammonia borane. They took their research further and devised a way to extract the hydrogen at a rate that is usable as a fuel. Unlike other boron and metal hydride hydrogen storage and release systems, the USC system is air-stable and re-usable. Read more of their findings at the Journal of the American Chemical Society.
You have liberated hydrogen, now you have to safe place to store it, and a great way to use it.
Eavesdropper