Jump to main content
Jump to site search

Issue 10, 2016
Previous Article Next Article

Efficient oxygen reduction reaction electrocatalysts synthesized from an iron-coordinated aromatic polymer framework

Author affiliations

Abstract

Aromatic polymers with abundant nitrogen-coordinated iron (Fe–Nx) species provide a big opportunity to prepare iron–nitrogen co-doped carbon (Fe–Nx/C) catalysts with highly efficient oxygen reduction reaction (ORR) activity; however, such types of materials have not been reported so far. Herein, we synthesized a metal-coordinated aromatic polymer, Fe(III)–poly(o-phenylene-diamine) (Fe–PPDA), with dense Fe–Nx species by a facile route. Fe–PPDA was obtained by polymerization of the o-phenylenediamine/ferric–ion complex in the presence of sodium bicarbonate, which was essential in retaining abundant Fe–Nx species and increasing the surface area of the polymer. Fe–PPDA polymer derived Fe–Nx/C catalysts demonstrated activity in ORRs, with onset and half-wave potentials (E1/2) of 1.11VRHE and 0.92VRHE, respectively, which were superior to the values obtained for commercial Pt/C (E1/2, 0.85VRHE) and are the best values yet reported for the Fe–Nx/C family in alkaline medium. It also demonstrated comparable ORR activity to that of the commercial Pt/C catalyst in acidic medium (E1/2, 0.76VRHEvs. 0.78VRHE). The excellent ORR activity was ascribed to the abundant Fe–Nx modulated carbon nanostructure and the high surface area.

Graphical abstract: Efficient oxygen reduction reaction electrocatalysts synthesized from an iron-coordinated aromatic polymer framework

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Oct 2015, accepted on 02 Feb 2016 and first published on 02 Feb 2016


Article type: Paper
DOI: 10.1039/C5TA08316H
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. A, 2016,4, 3858-3864
  •   Request permissions

    Efficient oxygen reduction reaction electrocatalysts synthesized from an iron-coordinated aromatic polymer framework

    Y. Zhao, K. Kamiya, K. Hashimoto and S. Nakanishi, J. Mater. Chem. A, 2016, 4, 3858
    DOI: 10.1039/C5TA08316H

Search articles by author

Spotlight

Advertisements