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Träfflista för sökning "WFRF:(Merte Lindsay R.) srt2:(2010-2014)"

Sökning: WFRF:(Merte Lindsay R.) > (2010-2014)

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  • Knudsen, Jan, et al. (författare)
  • Low-Temperature CO Oxidation on Ni(111) and on a Au/Ni(111) Surface Alloy
  • 2010
  • Ingår i: ACS Nano. - : American Chemical Society (ACS). - 1936-086X .- 1936-0851. ; 4:8, s. 4380-4387
  • Tidskriftsartikel (refereegranskat)abstract
    • From an interplay between scanning tunneling microscopy, temperature programmed desorption, X-ray photoelectron spectroscopy, and density functional theory calculations we have studied low-temperature CO oxidation on Au/Ni(111) surface alloys and on Ni(111). We show that an oxide is formed on both the Ni(111) and the Au/Ni(111) surfaces when oxygen is dosed at 100 K, and that CO can be oxidized at 100 K on both of these surfaces in the presence of weakly bound oxygen. We suggest that low-temperature CO oxidation can be rationalized by CO oxidation on O-2-saturated NiO(111) surfaces, and show that the main effect of Au in the Au/Ni(111) surface alloy is to block the formation of carbonate and thereby increase the low-temperature CO2 production.
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3.
  • Mittendorfer, Florian, et al. (författare)
  • Oxygen-Stabilized Rh Adatoms: 0D Oxides on a Vicinal Surface
  • 2011
  • Ingår i: The Journal of Physical Chemistry Letters. - : American Chemical Society (ACS). - 1948-7185. ; 2:21, s. 2747-2751
  • Tidskriftsartikel (refereegranskat)abstract
    • We have investigated the initial oxidation of the Rh(113) and Rh(223) vicinal surfaces by STM and ab initio simulations. Upon adsorption of small amounts of oxygen, the surface morphology is completely altered. Surprisingly, oxygen-stabilized Rh adatoms can be observed on the (113) facets, with oxide-like electronic properties. We present models of these "0D oxide" phases and discuss reasons for their stability.
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