A Density Functional Study Of Ni-2 And Ni-13 Nanoclusters

Autor: Önal, Işık, Sayar, Asli, Uzun, Alper, ÖZKAR, SAİM
Přispěvatelé: OpenMETU
Rok vydání: 2009
Předmět:
Popis: Ni-2 and Ni-13 clusters have been studied by means of DFT calculations performed at B3LYP level using three different basis sets. Equilibrium geometry calculations resulted in a binding energy of nickel dimer of 1.078 eV/atom for the basis set m6-31G*, showing good agreement with experimental data. Ni-13 nanocluster was found to have an equilibrium structure of icosahedral for all three basis sets in accordance with experimental findings. The intercept of the line obtained by drawing a correlation line of binding energies of Ni-2 dimer and Ni-13 nanocluster against n(-1/3), where n is the number of atoms in the cluster, gave a good estimation for bulk nickel binding energy at infinite n (4.57 eV/atom versus experimental value of 4.45 eV/atom) again using the basis set m6-31G*.
Databáze: OpenAIRE