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Showing papers in "Surface Science in 1984"


Journal ArticleDOI
TL;DR: In this article, a defect-related gap state with mainly Ti3d contribution 0.3 eV below the conduction band edge was determined, and an additional auger peak at 5.3eV higher energy than the L 3 M 23 V transition of ideal surfaces without point defects was observed.

514 citations


Journal ArticleDOI
TL;DR: In this paper, extensive calculations of the ground state properties of hydrogen chemisorbed on transition metal surfaces are performed using the effective medium theory, and the results for the chemical energy on all the 3D, 4D and 5D metals presented are in good agreement with experiment.

310 citations


Journal ArticleDOI
TL;DR: In this paper, the authors analyzed diffracted beam profiles from stepped surfaces that are reversible and obtained functional expressions for these angular profiles by a Markov method of treating a one-dimensional geometric distribution of steps.

298 citations


Journal ArticleDOI
TL;DR: In this article, the heat of adsorption as a function of molecular size, the contributions from the oxygen lone pair bond in alcohols and ethers, and the Van der Waals attraction of the alkane chains to the surface can be separated.

295 citations


Journal ArticleDOI
TL;DR: In this paper, a theoretical framework for comparing binding energies and activation energies for adsorption on surfaces based on the effective medium theory is presented, which is applied to a microscopic description of the mechanisms underlying the promotion and poisoning of the molecular adaption process on metal surfaces by co-adsorbed species.

287 citations


Journal ArticleDOI
TL;DR: In this article, the interactions and reactions of O2, CO and CO2 with Ag(110) have been studied with AES, XPS, TDS and LEED.

274 citations


Journal ArticleDOI
TL;DR: In this paper, the Ar-ion bombardment and annealing at 700 K ((0001) and (0001)) and 825 K (1010) were used for the preparation of ZnO faces.

235 citations


Journal ArticleDOI
TL;DR: Gold oxide is produced by oxygen DC reactive sputtering in a UHV compatible chamber and is subsequently characterized by High Resolution Electron Energy Loss, Auger and X-ray Photoelectron Spectroscopies as discussed by the authors.

221 citations


Journal ArticleDOI
TL;DR: In this paper, the authors investigated the reconstruction of the Au(100) surface with scanning tunneling microscopy and described the measured corrugation pattern by an isotropically contracted and slightly rotated, buckled hexagonal top layer, forming an incommensurate Au on Au structure.

218 citations


Journal ArticleDOI
TL;DR: In this paper, it was shown that desorption energies can be extracted from thermal desion spectra without any assumption on the preexponential, ν, regardless of coverage.

208 citations


Journal ArticleDOI
TL;DR: In this paper, various adlayers were grown on the surface of a platinum crystal by four different oxidizing treatments and the resulting surface phases were characterized by X-ray photoelectron spectroscopy.

Journal ArticleDOI
TL;DR: In this paper, temperature-programmed reaction spectroscopy (TPRS), low-energy electron diffraction (LEED), and high resolution electron energy loss spectrograph (EELS) was used to study oxygen adsorption and co-adoption with CO.

Journal ArticleDOI
TL;DR: In this article, the authors studied the mechanism of the selective oxidation of ethylene to ethylene epoxide on a well-characterized Ag(110) surface by combining high-pressure kinetic measurements with ultrahigh vacuum surface analysis in a single apparatus.

Journal ArticleDOI
TL;DR: In this article, the activation energy for desorption of this oxygen state was estimated from the thermal de-noising spectra to be about 163 kJ mol−1, and the chemisorbed oxygen atoms and the oxygen associated with silicon were distinguished by different binding energies (529.2 and 532.3 eV respectively).

Journal ArticleDOI
TL;DR: In this article, the possible information content in lineshapes observed in vibrational spectroscopy of molecules adsorbed on surfaces is considered by drawing analogies with similar situations in other spectroscopic areas where the systematics are more completely understood.

Journal ArticleDOI
TL;DR: The physical adsorption of CO onto SiO2 surfaces containing isolated OH groups results in the formation of two types of physisorbed CO, CO species A and CO species B, which exhibit vCO = 2158 cm−1 and is bound by hydrogen bonding to the SiOHδ+ groups to form a surface complex SiOH++ … CO as discussed by the authors.

Journal ArticleDOI
TL;DR: In this paper, a model predicts resonant Raman scattering by adsorbate vibrations through photon excited charge transfer transition from localized electronic states at sites of atomic scale roughness (e.g. “adatoms”) on silver surfaces to the affinity levels of the adsorbates.

Journal ArticleDOI
TL;DR: In this paper, the interaction of oxygen with Ag(111) has been studied over the pressure range 10 −2 −1.0 Torr, and the maximum dioxygen population is found to be markedly sensitive to gas dosing pressure; a model is proposed which accounts for these observations and for related observations on alkali-doped Ag.

Journal ArticleDOI
TL;DR: In this article, the authors proposed a method of low energy ion scattering in the impact collision mode (ICISS) has been substantially improved by the use of alkali ions, which extended the capabilities of ICISS towards the relative positioning of atoms lying in the first and deeper layers.

Journal ArticleDOI
TL;DR: In this paper, the Pt(110)-(1 × 2) surface reconstruction is analyzed by low energy alkali impact collision ion scattering spectroscopy (ALICISS) data allowing a direct correlation with the atom positions in real space.

Journal ArticleDOI
TL;DR: In this paper, the appearance of three different non-dissociated species is distinguished by their CO stretch frequencies of about 1530 cm -1 (a), 1800 cm −1 (b), and 2000 cm − 1 (c).

Journal ArticleDOI
James R. Chelikowsky1
TL;DR: In this paper, Miedema has proposed an empirical method for predicting surface segregation in intermetallic alloys and presented an overview of his predictions for all transition metal binary combinations.

Journal ArticleDOI
TL;DR: In this paper, the authors measured the angular distribution of CO2, I(γr), formed by catalytic reaction between CO and O2 on a stepped Pt(111) surface, by means of molecular beam techniques.

Journal ArticleDOI
TL;DR: In this article, the static lattice computer simulation method has been used to study the structure and properties of high index faces of MgO and NiO, and the calculated energies for steps on the (001) face are 3.72×10−10 and 3.62×10 −10 J m−1 respectively.

Journal ArticleDOI
TL;DR: In this paper, the work function changes, Δφ, surface conductivity, Δσ, and electron energy loss spectra (ELS) have been obtained as a function of relative hydrogen coverage, θ, determined by thermal desorption (TD) measurements.

Journal ArticleDOI
TL;DR: In this paper, the high-coverage structures of carbon monoxide overlayers on fee (100) metal surfaces is extended to metal surfaces that have a threefold rotational symmetry: fcc (111) and hcp (0001).

Journal ArticleDOI
TL;DR: In this article, the adsorption of H2O on clean and oxygen-covered Pd(100) was studied with temperature programmed reaction spectroscopy (TPRS), high resolution electron energy loss spectrography (EELS), and low energy electron diffraction (LEED).

Journal ArticleDOI
TL;DR: In this paper, the interaction of NO with a Pt(111) surface was studied by means of XPS, LEED and AES at 120 K and 305 K, respectively.

Journal ArticleDOI
TL;DR: In this paper, high resolution electron energy loss spectroscopy (HREELS) and low energy electron diffraction (LEED) were used to study the adsorption and decomposition of ethylene and acetylene on a Ni(110) surface.

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the bending of benzene to a chromium tricarbonyl fragment and to cluster models of silver, nickel, and platinum (111) surfaces by means of molecular orbital calculations.