![]() ![]() Credit: University of DelawareĪ few years back, the researchers realized this disadvantage might actually be a solution - for carbon dioxide removal. The inset image on the right shows, in part, how the molecules move within the short-circuited membrane. The UD research team’s spiral wound module takes in hydrogen and air through two separate inlets (shown on the left) and emits carbon dioxide and carbon dioxide-free air (shown on the right) after passing through two large-area, catalyst-coated shorted membranes. Yan’s research group has been searching for a workaround for this carbon dioxide conundrum for over 15 years. ![]() This defect quickly reduces the fuel cell’s performance and efficiency by up to 20%, rendering the fuel cell no better than a gasoline engine. Essentially, the carbon dioxide makes it hard for a HEM fuel cell to breathe. Yan, Henry Belin du Pont Chair of Chemical and Biomolecular Engineering, has been working for some time to improve hydroxide exchange membrane (HEM) fuel cells, an economical and environmentally friendly alternative to traditional acid-based fuel cells used today.īut HEM fuel cells have a shortcoming that has kept them off the road - they are extremely sensitive to carbon dioxide in the air. They can be used in transportation for things like hybrid or zero-emission vehicles. Game-changing tech for fuel cell efficiencyįuel cells work by converting fuel chemical energy directly into electricity. The research team, led by UD Professor Yushan Yan, reported their method in Nature Energy on Thursday, February 3. ![]()
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