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Fe doped porous triazine as efficient electrocatalysts for the oxygen reduction reaction in acid electrolyte

García, Álvaro and Retuerto, María and Dominguez, Carlota and Pascual, Laura and Ferrer, Pilar and Gianolio, Diego and Serrano, Aida and Assmann, Pia and Sanchez, Daniel G. and Pena, Miguel A. and Rojas, Sergio (2019) Fe doped porous triazine as efficient electrocatalysts for the oxygen reduction reaction in acid electrolyte. Applied Catalysis B: Environmental. Elsevier. DOI: 10.1016/j.apcatb.2019.118507 ISSN 0926-3373

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Official URL: https://doi.org/10.1016/j.apcatb.2019.118507

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.

Item URL in elib:https://elib.dlr.de/132763/
Document Type:Article
Title:Fe doped porous triazine as efficient electrocatalysts for the oxygen reduction reaction in acid electrolyte
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
García, ÁlvaroUNSPECIFIEDUNSPECIFIED
Retuerto, MaríaUNSPECIFIEDUNSPECIFIED
Dominguez, CarlotaUNSPECIFIEDUNSPECIFIED
Pascual, LauraUNSPECIFIEDUNSPECIFIED
Ferrer, PilarUNSPECIFIEDUNSPECIFIED
Gianolio, DiegoUNSPECIFIEDUNSPECIFIED
Serrano, AidaUNSPECIFIEDUNSPECIFIED
Assmann, PiaUNSPECIFIEDUNSPECIFIED
Sanchez, Daniel G.UNSPECIFIEDUNSPECIFIED
Pena, Miguel A.UNSPECIFIEDUNSPECIFIED
Rojas, SergioUNSPECIFIEDUNSPECIFIED
Date:31 July 2019
Journal or Publication Title:Applied Catalysis B: Environmental
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.apcatb.2019.118507
Publisher:Elsevier
ISSN:0926-3373
Status:Published
Keywords:ORR; NPMC; Triazine; PEMFC; Fe-N
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Energie und Verkehr
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics
Deposited By: Aßmann, Pia
Deposited On:19 Dec 2019 16:18
Last Modified:10 Feb 2020 11:40

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