Title of article :
The atomic geometry of oxygen-rich Ru(0001) surfaces: coexistence of (1×1)O and RuO2(110) domains
Author/Authors :
Kim، نويسنده , , Y.D. and Seitsonen، نويسنده , , A.P. and Over، نويسنده , , H.، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2000
Abstract :
Employing the technique of low energy electron diffraction (LEED) in combination with density functional theory (DFT) calculations, we determined the atomic geometry of the oxygen-rich Ru(0001) surface, which was recently shown to be extraordinarily active in the conversion of CO towards CO2. The oxygen-rich Ru(0001) surface consists of areas (some 10 μm wide) covered by a (1×1)O overlayer in coexistence with ultrathin (10–20 Å) patches of ruthenium dioxide RuO2 in (110) orientation. The oxide surface structure is characterized by a bulk-truncated RuO2(110) surface which is terminated by bridging oxygen rows.
Keywords :
Carbon dioxide , CARBON MONOXIDE , Low energy electron diffraction (LEED) , Metallic surfaces , Oxidation , Ruthenium , surface energy , morphology , surface structure , and topography , Roughness , Density functional calculations
Journal title :
Surface Science
Journal title :
Surface Science
