Journal
SCIENTIFIC REPORTS
Volume 7, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-017-00639-1
Keywords
-
Categories
Funding
- Shared Use Program of JAEA Facilities [2014B-E07, 2015A-E33, 2016A-E15, 2016B-E04]
- NIMS microstructural characterization platform
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) [A-14-AE-0032, A-15-AE-0028, A-16-AE-0007, A-16-AE-0016]
- Japan Synchrotron Radiation Research Institute [2014A1774, 2014B1657, 2014B3517, 2015A1681, 2015A1691, 2015A3517, 2016A1761]
Ask authors/readers for more resources
In situ high energy resolution fluorescence detection X-ray absorption spectroscopy (HERFD-XAS) was used to systematically evaluate interactions of H2O and O-2 adsorbed on Pt and Pt3Co nanoparticle catalysts in different particle sizes. The systematic increase in oxidation due to adsorption of different species (H2O adsorption < O-2 adsorption < O-2 + H2O coadsorption) suggests that cooperative behavior between O-2 and H2O adsorptions is responsible for the overpotential induced by hydrated species in fuel cells. From the alloying and particle size effects, it is found that both strength of O-2/H2O adsorption and their cooperative effect upon coadsorption are responsible for the specific activity of Pt catalysts.
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
Share Paper
