摘要 :
Adsorption and reaction of hydrogen (deuterium) on thin gold films grown on Ir{111} surface at similar to100 K have been. studied with temperature-programmed desorption using a quadrupole mass spectrometer. Thin Au{111} films are ...
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Adsorption and reaction of hydrogen (deuterium) on thin gold films grown on Ir{111} surface at similar to100 K have been. studied with temperature-programmed desorption using a quadrupole mass spectrometer. Thin Au{111} films are epitaxially grown on the Ir{111}. Surprisingly, H-2 (D-2) can dissociatively adsorb on these Au{111} films, although it is well known that Au surfaces are noble enough not to dissociate hydrogen molecules [Nature 376 (1995) 238]. Moreover, we found that H (D) atoms can be confined into a Au thin film and/or the interface between an Ir surface and the thin Au film. We demonstrate how reactive thin Au films are. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 20]
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