Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 46, Pages 18574-18576Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja2072675
Keywords
-
Categories
Funding
- DOE-BES, Chemical Sciences Office [DE-FG02-05ER15731]
- NSF [DGE-0946806]
- US Department of Energy's Office of Biological and Environmental Research
- Office of Science of the US Department of Energy [DE-AC05-00OR22725, DE-AC02-05CH11231]
Ask authors/readers for more resources
Using a combination of periodic, self-consistent, density functional theory (DFT) calculations and CO-stripping voltammetry experiments, we have designed a new class of Pt-M bimetallic monolayer catalysts supported on a non-Pt metal, which exhibit improved stability against CO poisoning and might be suitable for proton-exchange membrane fuel cell anodes. These surfaces help in reducing the overpotential associated with anodic CO oxidation and minimize the amount of Pt used, thereby reducing materials cost. DFT calculations predict highly repulsive interactions between adsorbed CO molecules on these surfaces, leading to weaker binding and lower coverage of CO than on pure Pt, which in turn facilitates oxidative removal of CO from these catalytic surfaces.
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