Science sesh by Matthew Modoono August 12, 2021 Share Facebook LinkedIn Twitter Graduate student Li Jiao works on PGM-free catalysts for polymer electrolyte membrane fuel cell applications, inside the Egan Research Center. Photo by Matthew Modoono/Northeastern University Graduate student Li Jiao works on PGM-free catalysts for polymer electrolyte membrane fuel cell applications, inside the Egan Research Center. Photo by Matthew Modoono/Northeastern University