High-resolution profile imaging studies of sulphur overlayers on platinum {100} surfaces

Autor: D. Tang, David A. Jefferson, Angus I. Kirkland, J. Uppenbrink
Rok vydání: 1990
Předmět:
Zdroj: Surface Science. 238:132-141
ISSN: 0039-6028
DOI: 10.1016/0039-6028(90)90071-f
Popis: Previous investigations have shown that an ordered monolayer of sulphur on the {100} surfaces of small platinum particles can be observed directly by high-resolution electron microscopy. This study presents the results of extensive image simulations of different possible {100} overlayer structures and adsorbtion sites for both 〈100〉 and 〈110〉 oriented particles, the results of this confirming the sulphur present in the experimental images as a c(2 × 2) overlayer with a four-fold adsorbate site symmetry.
Databáze: OpenAIRE