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Low-Pressure Synthesis and Characterization of Hydrogen-Filled Ice Ic


  • A part of this research at ORNL′s Spallation Neutron Source was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. The authors also thank G. McLaurin and S. Lang for technical assistance.


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A hydrogen storage material: When vapor-deposited amorphous ice is exposed to a low pressure (about 12 MPa) of hydrogen at 140 K a hydrogen-filled cubic ice results (see picture). Calculations suggest that this material has the potential for hydrogen storage with a capacity of 10 wt % hydrogen at full loading.