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EHT study of hydrogen chemisorption on Pt-Au(111) bimetallic clusters

✍ Scribed by G. Casalone; F. Merati; G.F. Tantardini

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
532 KB
Volume
137
Category
Article
ISSN
0009-2614

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✦ Synopsis

The results of an EHT study of the chemisorption of hydrogen on Pt, Au and mixed Pt-Au clusters (up to 19 atoms) are presented. On pure Pt clusters the adsorption sites have equal stability, while on pure Au the top site is the less favoured one.

When Au atoms substitute Pt. a destabilization of the metal-H bond is observed, while the insertion of Pt into an Au cluster leads to bond stabilization.

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