✦ LIBER ✦

Chemisorption of C2H2 on Pd(111) and Pt(111): formation of a thermally activated olefinic surface complex

✍ Scribed by J.E. Demuth

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 549 KB
Volume: 45
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(77)85199-3

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✦ Synopsis

Ultraviolet photoemission spectroscopy s:udics indicate that acetylene chcmisorbs on Pd( 111) and Pt(I 11) as x-bonded acetylene for T 5 180 K but upon warming (or room tcmpcraturc exposure) forms a new surface species. We identify the electronic structure of this new phase as being characteristic of an olefinic CzI12 surface species -the result of rehybridi-TatIon of the mltially chemisorbed molecule. T!lese xsults are discussed relative to previous work on Ni(ll1).

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