Email this article Determination of the melting temperature of palladium nanoparticles by X-ray absorption spectroscopy
- Authors: Vlasenko V.G.1, Podsukhina S.S.1, Kozinkin A.V.1, Zubavichus Y.V.2
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Affiliations:
- Research Institute of Physics
- National Scientific Center “Kurchatov Institute,”
- Issue: Vol 58, No 2 (2016)
- Pages: 421-426
- Section: Thermal Properties
- URL: https://bakhtiniada.ru/1063-7834/article/view/197033
- DOI: https://doi.org/10.1134/S1063783416020335
- ID: 197033
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Abstract
The anharmonicity parameters of the interatomic potential in ~4-nm palladium nanoparticles deposited on poly(tetra)fluoroethylene microgranules 0.2–0.5 μm in average size were studied by X-ray absorption spectroscopy from an analysis of temperature-dependent EXAFS Pd K edges. The parameters of the interatomic potential obtained were used to calculate melting temperature Tmelt = 1591 K and Debye temperature ΘD = 257 K of palladium nanoparticles; these temperatures are significantly lower than those in metallic palladium: 277 K and 1825 K, respectively.
About the authors
V. G. Vlasenko
Research Institute of Physics
Author for correspondence.
Email: v_vlasenko@rambler.ru
Russian Federation, pr. Stachki 194, Rostov-on-Don, 344090
S. S. Podsukhina
Research Institute of Physics
Email: v_vlasenko@rambler.ru
Russian Federation, pr. Stachki 194, Rostov-on-Don, 344090
A. V. Kozinkin
Research Institute of Physics
Email: v_vlasenko@rambler.ru
Russian Federation, pr. Stachki 194, Rostov-on-Don, 344090
Ya. V. Zubavichus
National Scientific Center “Kurchatov Institute,”
Email: v_vlasenko@rambler.ru
Russian Federation, pl. Kurchatova 1, Moscow, 123098
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