The PEM water electrolyzer (IMAGE) ICFO-The Institute of Photonic Sciences Caption Infograph that explains the concept of a PEM water electrolyzer, how it works, the new technique implemented by the team and the results they obtained. Credit ©ICFO Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.