Hydrogen bubbles (IMAGE) University of California - Santa Cruz Caption Bubbles of hydrogen gas are generated from the reaction of water with an aluminum-gallium composite. Credit (Credit: Amberchan et al., Applied Nano Materials 2022) Usage Restrictions For use only with news coverage of this research License Original 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.