Graphene-Nanocrystal Mix (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption A powdery mixture of graphene-wrapped magnesium nanocrystals, produced at Berkeley Lab, is stable in air. The mixture's energy properties show promise for use in hydrogen fuel cells. Credit (Eun Seon Cho/Berkeley Lab) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.