Title

An experimental study of the interaction of hydrogen with the Mg(0001) surface

Document Type

Article

Publication Date

12-27-1991

Abstract

The interaction of atomic and molecular hydrogen with the (0001) surface of magnesium has been studied using EELS, TDS, work-function measurements, and core-level spectroscopy. No evidence for molecular or dissociative adsorption of H2 is observed at the substrate temperature investigated (>110 K, atomic hydrogen is bound to the surface in a strongly chemisorbed state (surface hydride), which is a metastable phase. When the substrate is annealed to 425 K, no desorption occurs but the system converts irreversibly to a chemisorbed phase wherein the hydride characteristics are absent. The results are compared to existing theoretical studies. © 1991.

Publication Source (Journal or Book title)

Chemical Physics Letters

First Page

559

Last Page

564

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