Huang H.-C.Su C.-Y.Wang K.-C.Chen H.-Y.Chang Y.-C.Chen Y.-L.Wu K.C.-W.Wang C.-H.2019-05-172019-05-17201921680485https://scholars.lib.ntu.edu.tw/handle/123456789/408844Nonprecious metal catalysts of the oxygen reduction reaction (ORR) are highly preferred in anion exchange membrane fuel cells (AEMFCs) because of the high stability and low cost. Here, a novel pyrolyzed poly(3,4-ethylene dioxythiophene) hydrate (PEDOT)-Prussian blue (PB) catalyst (FeCN-S) for the ORR in an AEMFC cathode demonstrated high catalytic performance. After pyrolysis at 800 ¢XC, the templated PB-PEDOT formed the nanostructured Fe3C/FeS encapsulated carbon with heteroatom contribution, which exhibited optimized ORR activity with a direct four-electron transfer pathway for AEMFC applications. This improvement in activity is attributed to the specific structure, the heteroatom contribution, and the coordination structure. ? 2019 American Chemical Society.Fuel cellsNonprecious metal catalysisOxygen reduction reactionPEDOTPrussian blue[SDGs]SDG7journal article10.1021/acssuschemeng.8b050332-s2.0-85060388654https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060388654&doi=10.1021%2facssuschemeng.8b05033&partnerID=40&md5=227c407766281de85c36b8bea4750acf