Beanpod-shaped Fe–C–N composite as promising ORR catalyst for fuel cells operated in neutral media

We have prepared a nanoporous Fe-C-N catalyst with promising ORR activity viaa combined chemical precipitation and pyrolysis method. Cyanamide, Fe(NO sub(3)) sub(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 nan...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2014-01, Vol.2 (8), p.2623-2627
Main Authors: Yang, Zhi-Yu, Zhang, Yu-Xia, Jing, Lin, Zhao, Yu-Fei, Yan, Yi-Ming, Sun, Ke-Ning
Format: Article
Language:English
Subjects:
Catalysts
Current density
Fuel cells
Graphene
Iron
Nanostructure
Specific surface
Sustainability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have prepared a nanoporous Fe-C-N catalyst with promising ORR activity viaa combined chemical precipitation and pyrolysis method. Cyanamide, Fe(NO sub(3)) sub(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 m super(2) g super(-1). Furthermore, a limiting current density of 6.1 mA cm super(-2) in phosphate buffer solution (PBS pH 7.0) was achieved, which is nearly twice that obtained with commercial Pt[at]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.
ISSN:2050-7488
2050-7496
DOI:10.1039/c3ta13788k