Surface Review and Letters · 1996 · 14 citations · 0 references
Natural SciencesChemistryMaterials ScienceAnalytical ChemistryMaterials ChemistryPhysical ChemistryCatalyst CharacterizationCluster ChemistryCluster CompoundsCoordination ChemistrySurface PhysicsTransition Metal ChemistryBinding Free EnergyCluster ReactivityCluster SynthesisEnergy Dispersive X-ray SpectroscopyEnergy-dispersive X-ray SpectroscopyStructural Characterization Of ClustersTime-of-flight Mass SpectrometryVaporization
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.