Economical hydrogen storage

A future "hydrogen economy" will rely on finding a safe and efficient way to store the gas for powering fuel cell vehicles. Now, A research team from the California Institute of Technology, the national Institute of Standards and Technology, and the University of Maryland have developed a new metal-organic frameworks (MOF) compound, MOF-74, which they say can store hydrogen without requiring impractically high pressures or temperature. "When we started doing experiments, we realized the metal interaction doesn't just increase the temperature at which hydrogen can be stored, but it also increases the density above that in solid hydrogen," Brown says. "This is absolutely the first time this has been encountered without having to use pressure," says team member Craig Brown. .