Molecular modelling of the chemical interaction of atoms and molecules with a surface

Valuev, A. A.; Kaklyugin, A. S.; Norman, Henri E

doi:10.1070/rc1995v064n07abeh000166

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“…The situation is complicated when quantum chemical Hamiltonians are introduced into the statistical molecular dynamic and Monte Carlo methods. These are needed to obtain a vivid time-dependent picture of nanocluster development, such as growth and interaction with environment [2]. An attempt to use standard software (HyperChem [3], etc.)…”

Section: Introductionmentioning

confidence: 99%

Electronic structure of large modified nickel nanoclusters

Pokhmurskii¹,

Kopylets²,

Kornii³

2006

Condens. Matter Phys.

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A combined method of quantum-chemical semiempirical approach MNDO and molecular dynamics with atomic potentials was used while studying the growth of large nanoclusters of nickel. Geometry and electronic structure of Ni 485 were studied as well as a series of similar surface (111) substituted (by Pd, Pt, Cu, Mn and Cr) clusters. The role was analysed of the surface electronic density of states (DOS) and their contribution into the processes such as adsorption and surface reaction at catalytic oxidation of carbon monoxide. Stability of all substituted nanoclusters was analyzed and surface electron charges were estimated as negligible in agreement with experiments and exact calculations by periodic ab initio methods.

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Section: Introductionmentioning

confidence: 99%