CATALYST 3 (IMAGE) Rice University Caption Rice University postdoctoral associate Zhen-Yu Wu, left, and graduate student Feng-Yang Chen are co-lead authors of a study that introduced nickel-doped ruthenium as a candidate to replace expensive iridium in anode catalysts that split water into hydrogen and oxygen. Credit Jeff Fitlow/Rice University Usage Restrictions None 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.