Hydrogen abstraction from metal surfaces: when electron–hole pair excitations strongly affect hot-atom recombination

2016 ◽  
Vol 18 (46) ◽  
pp. 31378-31383 ◽  
Author(s):  
Oihana Galparsoro ◽  
Rémi Pétuya ◽  
Fabio Busnengo ◽  
Joseba Iñaki Juaristi ◽  
Cédric Crespos ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Metal Surfaces ◽  
Hydrogen Abstraction ◽  
Hole Pair ◽  
Electronic Excitations ◽  
Electron Hole ◽  
Electron Hole Pair ◽  
Dynamics Simulations

Using molecular dynamics simulations, we predict that the inclusion of nonadiabatic electronic excitations influences the dynamics of preadsorbed hydrogen abstraction from the W(110) surface by hydrogen scattering.

scholarly journals Energy dissipation to tungsten surfaces upon hot-atom and Eley–Rideal recombination of H2

2018 ◽  
Vol 20 (33) ◽  
pp. 21334-21344 ◽  
Author(s):  
Oihana Galparsoro ◽  
H. Fabio Busnengo ◽  
Alejandra E. Martinez ◽  
Joseba Iñaki Juaristi ◽  
Maite Alducin ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Energy Dissipation ◽  
Molecular Dynamics Simulations ◽  
Surface Structure ◽  
Hole Pair ◽  
Electron Hole ◽  
Classical Molecular Dynamics ◽  
Electron Hole Pair ◽  
Dynamics Simulations

Adiabatic and nonadiabatic quasi-classical molecular dynamics simulations are performed to investigate the role of electron–hole pair excitations in hot-atom and Eley–Rideal H2 recombination mechanisms on H-covered W(100). The influence of the surface structure is analyzed by comparing with previous results for W(110).

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