Issue 20, 2014

Enriched graphitic N-doped carbon-supported Fe3O4 nanoparticles as efficient electrocatalysts for oxygen reduction reaction

Abstract

Graphitic N is proposed to be one of the most likely active sites for the oxygen reduction reaction (ORR) in N-doped carbon materials. However, the recent hybrid composites consisting of N-doped carbons and transition metal oxides for the ORR are predominantly pyridinic N- and pyrrolic N-doped carbon-supported cobalt or manganese oxides. Here, an enriched graphitic N-doped carbon-supported Fe3O4 nanoparticles composite was prepared via a solvothermal carbonization process. The hybrid composite exhibits a similar high catalytic activity with the 4eāˆ’ reaction pathway but superior stability to Pt/C for the ORR in alkaline media. Furthermore, the composite also shows a better ORR performance than previously reported transition metal oxides-based N-doped carbon hybrid composites. The unusual high catalytic activity arises from the combination of the high surface area and the synergetic coupling effect between the enriched graphitic N-doped carbon and Fe3O4 nanoparticles.

Graphical abstract: Enriched graphitic N-doped carbon-supported Fe3O4 nanoparticles as efficient electrocatalysts for oxygen reduction reaction

Supplementary files

Article information

Article type
Paper
Submitted
03 Jan 2014
Accepted
20 Feb 2014
First published
21 Feb 2014

J. Mater. Chem. A, 2014,2, 7281-7287

Author version available

Enriched graphitic N-doped carbon-supported Fe3O4 nanoparticles as efficient electrocatalysts for oxygen reduction reaction

Y. Su, H. Jiang, Y. Zhu, X. Yang, J. Shen, W. Zou, J. Chen and C. Li, J. Mater. Chem. A, 2014, 2, 7281 DOI: 10.1039/C4TA00029C

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