Facile synthesis of hollow Fe-N-C hybrid nanostructures for oxygen reduction reactions

Jin Hee Lee, Min Jung Park, Juhae Jung, Jaeyune Ryu, Eunae Cho, SukWoo Nam, Jin Young Kim, Chang Won Yoon

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6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)3-7
Number of pages5
JournalInorganica Chimica Acta
Volume422
DOIs
Publication statusPublished - 2014 Oct 1
Externally publishedYes

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    Lee, J. H., Park, M. J., Jung, J., Ryu, J., Cho, E., Nam, S., Kim, J. Y., & Yoon, C. W. (2014). Facile synthesis of hollow Fe-N-C hybrid nanostructures for oxygen reduction reactions. Inorganica Chimica Acta, 422, 3-7. https://doi.org/10.1016/j.ica.2014.08.039