منابع مشابه
Molecular adsorption on graphene.
Current studies addressing the engineering of charge carrier concentration and the electronic band gap in epitaxial graphene using molecular adsorbates are reviewed. The focus here is on interactions between the graphene surface and the adsorbed molecules, including small gas molecules (H(2)O, H(2), O(2), CO, NO(2), NO, and NH(3)), aromatic, and non-aromatic molecules (F4-TCNQ, PTCDA, TPA, Na-N...
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CO adsorption, NO adsorption and CO þ NO reaction on various Pd model catalysts have been studied using vibrational spectroscopy from ultrahigh vacuum (UHV) up to elevated pressures (B1 bar) and the kinetics of the reaction compared with the conventional high surface area Pd/g-Al2O3 catalysts. The structure sensitivity of the CO þ NO reaction on different Pd surfaces is explained using Pd(111),...
متن کاملMolecular beam induced changes in adsorption behavior of NO on NiO(111)/Ni(111).
We have examined the adsorption behavior at approximately 110 K of NO on NiO(111) overlayers prepared on a Ni(111) substrate. High-resolution electron-energy-loss spectroscopy shows fundamental changes in the vibrational spectrum for the beam dosed surface in comparison with the background dosed surface. Three vibrational peaks are observed after beam dosing, two of which are not observed after...
متن کاملInfluence of molecular vibrations on dissociative adsorption
The influence of molecular vibrations on dissociative adsorption is studied by six-dimensional quantum dynamical calculations. For the system H2 at Pd (100), which possesses non-activated pathways, it is shown that large vibrational effects exist and that they are not due to a strongly curved reaction path and a late dissociation-hindering minimum barrier, as was previously assumed. Instead, th...
متن کاملPlane-wave Pseuclopotential Density Functional Theory periodic Slab Calculations of NO Adsorption on Co(111) Surface
Plane-wave pseudopotential Density Functional Theory (OFT) periodic slab calculations were performed usingthe giteralized gradient approximation (GHA) to investigate the adsorption of nitric oxide(NO) on the (I II)surface of Cu. Copper rface was stimulated using th P 'odic Slab Method consisting of Five atomic Layers.Four different adsorption saes (Atop. Bridge, RCP Hollow, and FCC Hollow) were...
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ژورنال
عنوان ژورنال: Surface Science
سال: 2015
ISSN: 0039-6028
DOI: 10.1016/j.susc.2015.01.010