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Fe doped porous triazine as efficient electrocatalysts for the oxygen reduction reaction in acid electrolyte
DOI:
10.1016/j.apcatb.2019.118507
Authors:
Álvaro
García
(CSIC)
,
María
Retuerto
(CSIC)
,
Carlota
Dominguez
(CSIC)
,
Laura
Pascual
(CSIC)
,
Pilar
Ferrer
(Diamond Light Source)
,
Diego
Gianolio
(Diamond Light Source)
,
Aida
Serrano
(The European Synchrotron)
,
Pia
Assmann
(German Aerospace Center (DLR), Institute of Engineering Thermodynamics)
,
Daniel G.
Sanchez
(German Aerospace Center (DLR), Institute of Engineering Thermodynamics)
,
Miguel A.
Peña
(German Aerospace Center (DLR), Institute of Engineering Thermodynamics)
,
Sergio
Rojas
(German Aerospace Center (DLR), Institute of Engineering Thermodynamics)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Applied Catalysis B: Environmental
State:
Published (Approved)
Published:
December 2019

Abstract: In this work, we report the synthesis of Fe/N/C electrocatalysts using triazine based porous organic polymers as precursors. Iron-doped triazine porous organic polymers were obtained by in situ polymerization of iron precursor and 1,2- or 1,4- dicyanobenzene (DCB). In order to obtain the actual catalyst, the polymer obtained was subjected to thermal treatment under NH3. The catalysts obtained exhibit activity and durability for the oxygen reduction reaction in acid electrolyte. Thorough characterization of the catalysts reveal the formation of several types of iron species, including metallic iron, iron carbides and Fe-Nx moieties. The latter species is the main responsible for the high activity measured for the oxygen reduction reaction in acid electrolyte. 1,2-DCB results in more active catalysts than 1,4-DCB due to the higher fraction of FeNx ensembles in the former, probably because vicinal positions of N-bearing groups are more prone to coordinate Fe atoms.
Journal Keywords: ORR; NPMC; Triazine; PEMFC; Fe-N
Diamond Keywords: Fuel Cells
Subject Areas:
Chemistry,
Energy,
Environment
Facility: ESRF
Added On:
04/12/2019 09:39
Documents:
jnfjkjj44w.pdf
Discipline Tags:
Earth Sciences & Environment
Sustainable Energy Systems
Energy
Climate Change
Physical Chemistry
Catalysis
Chemistry
Materials Science
Organic Chemistry
Polymer Science
Technical Tags: