Bringing Down the Cost of Fuel Cells (IMAGE) University of Delaware Caption University of Delaware Distinguished Engineering Professor Yushan Yan, at the wheel of a fuel cell vehicle, is conducting research on the use of nickel as a catalyst in an alkaline electrolyte that promises to bring down the cost of hydrogen fuel cells. Credit Jie Zheng/University of Delaware Usage Restrictions Image must include credit to University of Delaware. 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.