HER catalytic performance (IMAGE) City University of Hong Kong Caption HER catalytic performance of the Al-Mn-Ru samples, in comparison with previously reported noble metal-based catalysts. Credit Liu, S. et al. (source: https://www.science.org/doi/10.1126/sciadv.add6421) Usage Restrictions Image must be used with appropriate caption and 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.