“The problem with hydrogen is trying to store it, or minimize it’s loss. Right now, it’s no different than electric batteries in that you can leave a hydrogen vehicle in your driveway for a couple of weeks and you’re going to come back to a vehicle that is sitting empty.”
H2 is the smallest molecule, so can work its way out any container. Do I have this right?
Yes, because it’s individual molecules that are bouncing around, there is no way to contain it.
For it to be useful, other than in immediate applications, we need something that binds with hydrogen when not used but is relatively efficient in breaking the bonds when it is used, so whatever it binds to can be kept in the storage tank.