Journal
JOURNAL OF POWER SOURCES
Volume 273, Issue -, Pages 810-815Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2014.09.104
Keywords
Electrospining; Nitrogen-doped carbon nanofibers; Oxygen reduction reaction; Electrocatalysis
Funding
- National Natural Science Foundation of China [21222505]
Ask authors/readers for more resources
Nitrogen-doped carbon nanofibers (NCNFs) are prepared by the thermal treatment of carbon nanofibers (CNFs) using urea as nitrogen source. Scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy have been employed to characterize the morphology and composition of CNFs and NCNFs. Compared with CNFs, NCNFs display thinner diameter, rougher surface and higher content of pyrrolic-N. As a metal-free catalyst for ORR, NCNFs exhibit comparable catalytic activity, significantly enhanced long-time stability and selectivity in comparison with commercial available Pt/C catalyst. Importantly, the self-supported NCNFs films could be conveniently utilized for electrode modification which is attractive in fuel cells. This work offers a promising metal-free catalyst as an alternative for Pt/C catalyst. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available