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Published on: August 22, 2014
Collision as a way of forming bimetallic nanoclusters of various structures and chemical compositions
Marcelo M Mariscal1, Sergio A Dassie, Ezequiel P M Leiva
1Unidad de Matemática y Física, Facultad de Ciencias Químicas, Instituto de Investigaciones en Fýsico-Quýmica de Cýrdoba, Universidad Nacional de Córdoba, Córdoba 5000, Argentina. marmariscal@fcq.unc.edu.ar
Abstract:
In the present work, a new way to obtain bimetallic nanoclusters of different structures and chemical compositions is proposed, which is based on computer simulations. Collision processes between two metal clusters of different natures are simulated through molecular-dynamics simulations using many-body potentials. Diverse diffusion mechanisms and structures can be observed, depending on the metals combined and the initial kinetic energies. The nanostructures we have found are core-shell (Pt-Au), alloyed (Pd-Au), and three-shell onionlike (Cu-Ag).
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