High-Energy-Density Gaseous Fuel Storage

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CO2 emissions from the transportation sector can be significantly reduced through the use of gaseous transportation fuels, like hydrogen and methane, that are generated using low-carbon sources of energy. These gases can be used to power combustion engine vehicles or highly efficient fuel cell vehicles. However, existing technologies for storing gaseous fuels in vehicles are neither energy-dense, nor cost-effective. Breakthroughs in gas-storage technologies could allow low greenhouse gas footprint hydrogen- and methane-powered vehicles to have the same range and cost as the fossil-fuel-powered vehicles we drive today, while dramatically reducing CO2 emissions from the transportation sector.