Hydrogen Fuel Storage Using Activated Carbon for Vehicles

Carbon adsorption has been found to be an excellent method to store hydrogen. This is an ideal method for weight sensitive applications without the high pressures of compressed hydrogen gas, and the cryogenic temperatures of liquid hydrogen (20°K/-253°C). At 150°K (-123°C) and 55-atm (810-psig), hydrogen is adsorbed in its condensed phase over the vast surface area of the carbon. The adsorption method can store nearly 2-times more hydrogen than in pure compression at the same conditions. Hydrogen combustion by-product is solely water. In air, combustion by-products also include a small quantity of Vehicles fitted with hydrogen fuel cells can deliver the same power and twice as much range as gasoline or diesel vehicles, but without the pollutants. Hydrogen is the cleanest and most efficient fuel known, and it is totally renewable.