Search
Abstract
The local structure and chemical disorder of a commercially available Pt3Co nanocatalyst supported on high surface area carbon were investigated. High-quality XAFS spectra were collected at the ELETTRA synchrotron XAFS 11.1 beamline. XAFS spectra analysis have been performed accounting for the reduction of the coordination number and degeneracy of three-body configurations, resulting from transmission electron microscopy (TEM) and x-ray diffraction (XRD) extracted mean particles diameter, size distribution and expected surface atom contributions. The presence of a Co-Co first neighbour EXAFS signal is shown to be related to the degree of the alloy's chemical disorder.
Citations
-
0
CrossRef
-
0
Web of Science
-
1
Scopus
Authors (9)
Cite as
Full text
full text is not available in portal
Keywords
Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- The 14th International Conference on X-ray Absorption Fine Structure (XAFS'14), Journal of Physics: Conference Series.
- Language:
- English
- Publication year:
- 2009
- Bibliographic description:
- Greco G., Witkowska A., Soldo Y., Larquet E., Menguy N., Cognigni A., Minicucci M., Principi E., Di Cicco A.: Study of the atomic structure and morphology of the Pt3Co nanocatalyst// The 14th International Conference on X-ray Absorption Fine Structure (XAFS'14), Journal of Physics: Conference Series./ ed. eds. A Di Cicco, A Filipponi. USA: IOP Publishing, 2009,
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/1742-6596/190/1/012168
- Verified by:
- Gdańsk University of Technology
seen 90 times
Recommended for you
Local structural and chemical ordering of nanosized Pt(3±δ)Co probed by multiple-scattering x-ray absorption spectroscopy
- G. Greco,
- A. Witkowska,
- E. Principi
- + 2 authors
Fe local structure in Pt-free nitrogen-modified carbon based electrocatalysts: XAFS study
- A. Witkowska,
- G. Giuli,
- M. Renzi
- + 2 authors
Local Ordering Changes in Pt-Co Nanocatalyst Induced by Fuel Cell Working Conditions
- G. Greco,
- A. Witkowska,
- M. Minicucci
- + 6 authors