Smaller is More Stable (IMAGE) American Institute of Physics Caption Smaller Mg nanoparticles display better mechanical performance that is good for structural stability during cycling and also hydrogen storage kinetics. Credit Qian Yu/Zhejiang University Usage Restrictions The image may only be used with appropriate caption or credit. 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.