Hydrogen Producing Membrane (IMAGE) DOE/Argonne National Laboratory Caption This image shows two membrane-bound protein complexes that work together with a synthetic catalyst to produce hydrogen from water. Credit Olivia Johnson and Lisa Utschig 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.