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

Title
Facile synthesis of hollow Fe-N-C hybrid nanostructures for oxygen reduction reactions
Authors
이진희박민정정주해류재윤조은애남석우김진영윤창원
Keywords
Hollow graphitic structure; Fe-N-C nanocomposite; Oxygen reduction reaction
Issue Date
2014-10
Publisher
Inorganica chimica acta
Citation
VOL 422, 3-7
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.
URI
http://pubs.kist.re.kr/handle/201004/48997
ISSN
00201693
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KIST Publication > Article
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