Electrochemical water splitting using renewable electricity (solar, wind, hydro) provides sustainable means for producing hydrogen. Hydrogen has many industrial uses, including fertilizer (ammonia) production, petrochemical processes and as a carbon-free fuel. Particularly, hydrogen fuel cells have the potential to transform the transportation sector. Operating on hydrogen produced renewably, fuel cell powered automobiles have the potential to reduce greenhouse gas emissions by as much as 90% in comparison to conventional internal combustion vehicles. The Higgins group focuses on the development of inexpensive nanostructured catalysts with high activity and stability for the oxidative oxygen evolution reaction (OER) or reductive hydrogen evolution reaction (HER).