The structural and dynamical properties of water next to the Pt( 111) and Pt( 100) surfaces were investigated using molecular dynamics simulations. At 300 K, the water layer adjacent to the surface displays solid-like properties. The adsorption sites for the water molecules are determined by the loc
Structure and dynamics at the Pt(100)-surface
β Scribed by A. Wachter; K. P. Bohnen; K. M. Ho
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 555 KB
- Volume
- 508
- Category
- Article
- ISSN
- 0003-3804
No coin nor oath required. For personal study only.
β¦ Synopsis
Using first-principles total-energy CalCUlatiOnS the lattice relaxation, surface energy, work function and surface phonons have been determined for the Pt( 100)-surface. Calculation of forces allows for a very efficient determination of equilibrium geometries and interplanar force constants. Results will be presented and compared with available experimental information.
π SIMILAR VOLUMES
We have performed density functional calculations using cluster models of the C(100), Si(100) and Ge(100) surfaces. We find that the ground-state geometry is strongly dependent upon the constraints imposed during geometry optimization and also can be affected significantly by the cluster size in the
We provide direct theoretical evidence for the existence of a strong coupling between the barrier for H2 dissociation and the structure of the Si( 100) surface. Our arguments are based on an ab initio calculation of the potential energy surface for the dissociation process. While adsorption on the b
The formation of methanol adsorbate as a structure sensitive process was studied on platinum single crystal surfaces. The measurements were performed on reproducibly prepared, clean and either well ordered ("undisturbed") or cycled ("disturbed") Pt(100) and Pt(ll1) single crystal electrodes. Essenti