Lee, Jin Hee Park, Min Jung Jung, Juhae Ryu, Jaeyune Cho, EunAe Nam, Suk-Woo Kim, Jin Young Yoon, Chang Won 2024-01-20T08:34:21Z 2024-01-20T08:34:21Z 2021-09-02 2014-10-01 0020-1693 https://pubs.kist.re.kr/handle/201004/126261 A novel Fe-N-C composite material with a hollow graphitized nanostructure is prepared by pyrolyzing iron-chelating, nitrogen-containing precursors adsorbed on carbon black spheres for use in the oxygen reduction reaction (ORR) of polymer electrolyte membrane fuel cells (PEMFCs). The resulting composite hybrid exhibits excellent electrocatalytic activity and a four-electron dominated ORR pathway in an alkaline solution. The efficient catalytic activity of the prepared Fe-N-C is mainly attributed to the effective incorporation of nitrogen and iron atoms into the graphitized matrices and high electrical conductivity due to the interconnected structure. Furthermore, the hybrid material shows superior catalytic durability in the alkaline medium even after 3000 cyclic voltammetry cycles, making it a good candidate for a cathodic electrocatalyst in PEMFCs. (C) 2014 Elsevier B. V. All rights reserved. English ELSEVIER SCIENCE SA NITROGEN-DOPED GRAPHENE MEMBRANE FUEL-CELLS METAL CATALYSTS CARBON ELECTROCATALYSTS PHTHALOCYANINE NANOPARTICLES COMPOSITE NANOCOMPOSITES ELECTROLYTE Facile synthesis of hollow Fe-N-C hybrid nanostructures for oxygen reduction reactions Article 10.1016/j.ica.2014.08.039 1 INORGANICA CHIMICA ACTA, v.422, pp.3 - 7 INORGANICA CHIMICA ACTA 422 3 7 scie scopus 000343585800002 2-s2.0-84908005628 Chemistry, Inorganic & Nuclear Chemistry Article NITROGEN-DOPED GRAPHENE MEMBRANE FUEL-CELLS METAL CATALYSTS CARBON ELECTROCATALYSTS PHTHALOCYANINE NANOPARTICLES COMPOSITE NANOCOMPOSITES ELECTROLYTE Hollow graphitic structure Fe-N-C nanocomposite Oxygen reduction reaction