The 'repackaged' hydrogen has specific energy density of 14MJ/Kg,
14mj/kg is obviously very low, your better off running pure ethanol or anything but that.
Missed a digit. Liquid hydrogen = 147MJ/K.
UK Cella Energy develops hydrogen based fuel in microbeads that can lead to US$1.50 per gallon fuel compatible with existing cars
Their initial schematics show a nano-sized polystrene carrier/membrane around a hydride core, the nano-spheroids has liquid-like properties, thus could be delivered by existing fueling pumps. Inside the vehicle, the hydrogen is liberated from 'solid' fuel by an external heat source. An accumulator regulates the pressures going into an ICE motor or delivered to a fuel cell of an EV powerplant.
My concern of nano-technologies is the unknown biological risks of unintended consequences. Breathing/ingestion/infiltration of highly caustic nanoparticles would be very dangerous. Just the 'inert' asbestos particulates & carbon nanotubes, serious organ/lung diseases are their serious biological consequences. Nanotechnology oversight agencies does not even have a clear safety data research standards.
I'm not a Luddite, but the nano-frontier is wide open but hopefully not a cliff.