Optimized synthesis of Fe/N/C cathode catalysts for PEM fuel cells: A matter of iron-ligand coordination strength

  • Tian J
  • Morozan A
  • Sougrati M
 et al. 
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Abstract

It's all in the detail: Highly active Fe/N/C catalysts for the oxygen-reduction reaction in polymer-electrolyte-membrane (PEM) fuel cells can be obtained from a precursor constructed from the zeolitic imidazolate framework ZIF-8 and an iron-ligand complex if, and only if, the displacement of Zn(II) ions from ZIF-8 by Fe(II) ions is restricted (see picture; TPTZ=2,4,6-tris(2-pyridyl)-s-triazine).

Author-supplied keywords

  • UV/Vis spectroscopy
  • chelates
  • fuel cells
  • iron
  • zeolites

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