Existing fuel cell catalysts still struggle to provide the combination of activity and durability needed to meet important performance goals. The problem is that platinum nanoparticles can change during fuel cell operation. Wu and his colleagues developed a new carbon structure designed to overcome this limitation. A Potential Path Toward Better Fuel Cell PowerThe architecture of the carbon support offers additional benefits beyond stabilizing the nanoparticles. If further development proves successful, the technology could help improve fuel cells for applications ranging from transportation to electricity generation.