Title of article
Dense structures formed by CO on Rh(111) studied by scanning tunneling microscopy
Author/Authors
Cernota، نويسنده , , Paul F. Rider and Nhan Phan-Thien، نويسنده , , Keith and Yoon، نويسنده , , H.Alex and Salmeron، نويسنده , , Miquel and Somorjai، نويسنده , , Gabor، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2000
Pages
7
From page
249
To page
255
Abstract
Scanning tunneling microscopy (STM) has been used to study the chemisorption of CO on a Rh(111) single crystal surface at room temperature at coverage ≥0.5 ML. A background pressure of CO was maintained during imaging. The structures observed include a (2×1) and two forms of (7×7)R19° that had not been previously observed. In contrast to the low coverage regime, above 3/7 ML, CO occupies both top and three-fold hollow adsorption sites. The highest coverage structure, (2×2)-3CO, was found to be stable under CO pressures of at least 700 Torr.
Keywords
Chemisorption , Rhodium , Low index single crystal surfaces , Scanning tunneling microscopy , Carbon dioxide
Journal title
Surface Science
Serial Year
2000
Journal title
Surface Science
Record number
1677560
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