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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.
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- 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
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