Hydrogen atom quantum migration on platinum

College

College of Science

Department/Unit

Physics

Document Type

Article

Source Title

e-Journal of Surface Science and Nanotechnology

Volume

4

First Page

619

Last Page

623

Publication Date

10-3-2006

Abstract

We have reexamined hydrogen-platinum systems, giving emphasis on the atomic migration on the metal surface. The ideal (111) surface was firstly revisited, with the model potential energy surface for the motion of hydrogen created from calculations using a slab of platinum atoms fixed at the bulk separation obtained from experimental measurements. Calculated hydrogen hopping states in an adiabatic approximation are presented, with the lowest of these found at only 30 meV above the ground state. Effects of the presence of vacancies on the atomic migration are discussed from a potential energy surface constructed using a similar model. © 2006 The Surface Science Society of Japan.

html

Digitial Object Identifier (DOI)

10.1380/ejssnt.2006.619

Disciplines

Physics

Keywords

Approximation theory; Diffusion; Hydrogen; Potential energy surfaces

Upload File

wf_yes

This document is currently not available here.

Share

COinS