www.Parctel.com: Three papers published recently in the Journal of the American Chemical Society have reported major progress on "packing" hydrogen in jaw-breaking compounds such as manganese benzenetristetrazolate MOF with the goal of making H2 a practical automotive fuel.
You might want to wait to put your order in, however.
To store six grams of hydrogen per liter of volume necessitates maintaining a temperature of 77K (the temperature of liquid nitrogen) at a pressure of about 1300 pounds per square inch (psi). For comparison, room temperature is 293K and the pressure in your home water pipes is 30 to 60 psi.
Hydrogen would require 5 to 6 times the storage capacity of an equivalent amount of gasoline. The pressure vessel to contain the fuel is estimated to weigh on the order of 840 pounds. And don't leave your car in airport parking too long or your fuel would boil away.
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