1. PREPARATION OF BIMETALLIC PtnPdm SUPPORTED CLUSTERS WITH WELL-DEFINED STOICHIOMETRY
- Author
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M. Pellarin, A.J. Renouprez, Alain Perez, Jean-Luc Rousset, Patrice Mélinon, A. M. Cadrot, Michel Broyer, J.L. Vialle, and F. Santos Aires
- Subjects
Chemistry ,Binding energy ,chemistry.chemical_element ,02 engineering and technology ,Surfaces and Interfaces ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Mass spectrometry ,7. Clean energy ,01 natural sciences ,0104 chemical sciences ,Surfaces, Coatings and Films ,Crystallography ,Materials Chemistry ,Reactivity (chemistry) ,Well-defined ,0210 nano-technology ,Platinum ,Bimetallic strip ,Stoichiometry ,Palladium - Abstract
Supported bimetallic Pd-Pt clusters with a well-defined stoichiometry are produced using a laser-vaporization source. Free clusters are also studied by time-of-flight mass spectrometry and photofragmentation. The supported clusters are characterized by energy dispersive x-ray analysis. The low binding energy of palladium atoms compared to that of platinum is clearly demonstrated in both free and supported clusters. The reactivity is briefly discussed.
- Published
- 1996
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