Please use this identifier to cite or link to this item:
Title: Design of an oxygen reduction catalyst for direct methanol fuel cells
Authors: Xu, J.
Yang, J.
Lee, J.Y. 
Saeys, M. 
Issue Date: 3-Nov-2010
Citation: Xu, J., Yang, J., Lee, J.Y., Saeys, M. (2010-11-03). Design of an oxygen reduction catalyst for direct methanol fuel cells. Industrial and Engineering Chemistry Research 49 (21) : 10251-10253. ScholarBank@NUS Repository.
Abstract: First principle calculations were used to screen the activity of core-shell oxygen reduction reaction (ORR) electrocatalysts for use in direct methanol fuel cells (DMFCs). Density functional theory (DFT) calculations indicate that the subsurface addition of 3d transition metals improves the activity of a Pd3Pt electrocatalyst by reducing its oxygen binding energy. Optimal activity close to the maximum of the ORR volcano curve is predicted for Pd 3Fe@Pd3Pt and Pd3Mn@Pd3Pt core-shell catalysts. To validate the theoretical predictions, a series of Pd 3M@Pd3Pt/C electrocatalysts (M = Ni, Co, Fe, and Cr) was prepared by galvanic replacement. Optimal activity and high methanol tolerance were observed for Pd3Fe@Pd3Pt. Compared with commercial Pt catalysts, the Pd3M@Pd3Pt structured catalysts utilize less platinum and yet display favorable ORR activity and selectivity. © 2010 American Chemical Society.
Source Title: Industrial and Engineering Chemistry Research
ISSN: 08885885
DOI: 10.1021/ie100524s
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Jul 8, 2020


checked on Jul 1, 2020

Page view(s)

checked on Jun 28, 2020

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.