Effects of MEA Fabrication and Ionomer Composition on Fuel Cell Performance of PGM-Free ORR Catalyst Yin, Xi ; Lin, Ling ; Chung, Hoon T. ; Komini Babu, Siddharth ; Martinez, Ulises ; Purdy, Geraldine M. ; Zelenay, Piotr Abstract Publication: ECS Transactions Pub Date: July 2017 DOI: 10.1149/07711.1273ecst Bibcode: 2017ECSTr..77k1273Y