For hydrogen to continue to grow and change sectors across the economy, new infrastructure is needed. Hydrogen-powered cars store hydrogen gas onboard at a pressure 700 times greater than atmospheric pressure to drive as far as conventional gasoline vehicles. While this technology has enabled hydrogen-powered cars to be commercialized, it cannot meet the challenging energy density targets set forth by the U.S. Department of Energy.
With the support of DOE’s Energy Efficiency and Renewable Energy Office’s Fuel Cell Technologies Office, the Hydrogen Materials Advanced Research Consortium (HyMARC), a multilab collaboration, is developing two types of hydrogen storage materials to meet those federal targets. In the first phase of its work, the group identified strategies and did foundational research to increase the storage capacity of metal-organic frameworks and increase the storage efficiency of metal hydrides.
Now, the newly expanded collaboration is using the most promising strategies to optimize the materials for future use in vehicles, potentially offering more compact onboard storage systems, reduced operating pressures and significant cost savings.