Ultra-thin PtFe-nanowires as durable electrocatalysts for fuel cells
Document Type
Article
Publication Date
1-7-2011
Abstract
Ultra-thin PtxFey-nanowires (PtxFe y-NWs) with a diameter of 2-3 nm were successfully prepared through a solution-phase reduction method at Pt-Fe compositions from 1:1 to 2:1. The carbon supported PtxFey-NWs (PtxFe y-NWs/C) demonstrated higher oxygen reduction reaction (ORR) activity and better electrochemical durability than conventional Pt/C catalyst. After 1000 cycles of 0-1.3 V (versus RHE), the relative electrochemical surface area (ECSA) of Pt2Fe1-NW/C dropped down to 46%, which was two times better than Pt/C catalyst, and the mass activity at 0.85 V (versus RHE) for Pt1Fe 1-NW/C was 39.9 mAmg-Pt-1, which is twice that for Pt/C (18.6 mA mg-Pt-1). © 2011 IOP Publishing Ltd Printed in the UK & the USA.
Publication Title
Nanotechnology
Recommended Citation
Zhang, Z.,
Li, M.,
Wu, Z.,
&
Li, W.
(2011).
Ultra-thin PtFe-nanowires as durable electrocatalysts for fuel cells.
Nanotechnology,
22(1).
http://doi.org/10.1088/0957-4484/22/1/015602
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/9642