Abstract
We have prepared a nanoporous Fe-C-N catalyst with promising ORR activity via a combined chemical precipitation and pyrolysis method. Cyanamide, Fe(NO3)3, and graphene oxide (GO) were used as the N, Fe, and C precursors, respectively. The synthesized Fe-C-N has a unique beanpod-shaped nanostructure with a specific surface area determined as 186 m2 g-1. Furthermore, a limiting current density of 6.1 mA cm-2 in phosphate buffer solution (PBS pH 7.0) was achieved, which is nearly twice that obtained with commercial Pt@C. The Fe-C-N catalyst was used as the cathode of a fuel cell (FC) to recover energy from organic fuels in neutral solution.
| Original language | English |
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| Pages (from-to) | 2623-2627 |
| Number of pages | 5 |
| Journal | Journal of Materials Chemistry A |
| Volume | 2 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 28 Feb 2014 |