- Tytuł:
- Simulation of Hydrogen-Induced Reconstruction of Oxygen on Pd(111)
- Autorzy:
-
Petrauskas, V.
Tornau, E. - Powiązania:
- https://bibliotekanauki.pl/articles/1813480.pdf
- Data publikacji:
- 2008-03
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
68.43.Fg
68.43.Hn
68.43.Mn
64.60.Cn - Opis:
- The oxygen and hydrogen atoms co-adsorption experiment on Pd(111) is modelled using kinetic Monte Carlo method. We consider O-O, H-H, and O-H interactions and several kinetic processes (diffusion, surface and subsurface H-atoms exchange and water-formation reaction) leading to the phase transition $(2×2)_O$ → $(\sqrt(3)×\sqrt(3))_O$ with increase in H-coverage. We also demonstrate how reverse phase transition $(\sqrt(3)×\sqrt(3))_O$ → $(2×2)_O$ occurs due to hydrogen dissolution into subsurface in the absence of hydrogen gas. At higher temperature we observe the disappearance of $(2×2)_O$ oxygen islands due to water-formation reaction.
- Źródło:
-
Acta Physica Polonica A; 2008, 113, 3; 1075-1078
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł