Adsorption and reactions of NO on clean and Co-precovered Ir(111)

Article Abstract:

Adsorption and reactions of NO on clean and CO-precovered Ir(111) were investigated by means of X-ray photoelectron spectroscopy (XPS), high-resolution electron energy loss spectroscopy, infrared reflection absorption spectroscopy and temperature-programmed desorption. Two NO adsoprtion states, indicative of fcc-hollow sites and atop sites, were present on the Ir(111) surface at saturation coverage.

United States, Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Industrial Gas Manufacturing, Industrial gases, Carbon Dioxide, Iridium, Adsorption, Photoelectron spectroscopy

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Studies of NO adsorption on Pt(110)-(1*2) and (1*1) surfaces using density functional theory

Article Abstract:

Density functional theory (DFT) method investigated adsorption of NO on Pt(110)-(1*2) and (1*1) surfaces with full geometry optimization and without symmetry restriction. It is shown that the NO site switching on both of the surfaces as found in experiments at low coverages, bridge species is formed on the surface and at high coverage, NO switches to atop sites.

Nitrogen Compounds, Usage, Density functionals, Density functional theory, Platinum compounds

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Structure-dependent kinetics for synthesis and decomposition of formate species over Cu(111) and Cu (110) model catalysts

Article Abstract:

The formate synthesis on copper at 1 atm is structure-insensitive in terms of the absolute formation rate as well as the activation energy. The Cu(111) surface can be regarded as a model of a Cu/SiO2 powder catalyst in terms of the kinetics of formate synthesis, formate decomposition and the unique character of the promotion on the formate decomposition.

Silicon, Copper, Surface chemistry, Chemical synthesis

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