✦ LIBER ✦

An experimental study of hydrogen adsorption on beryllium

✍ Scribed by K.B. Ray; J.B. Hannon; E.W. Plummer

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 589 KB
Volume: 171
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)85248-b

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✦ Synopsis

The interaction of hydrogen and deuterium with the (0001) surface of beryllium has been investigated using high resolution electron energy loss spectroscopy, thermal desorption spectroscopy, and work function measurements. Dissociative adsorption of molecular hydrogen is an activated process, and recombinative desorption occurs with an activation energy of z I eV. No evidence for molecular adsorption is observed at substrate temperatures investigated ( > 90 K). The binding site of atomic hydrogen and deuterium changes from bridge to tilted-bridge as the adsorbate coverage is increased above z 0.4 monolayers.

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