Direct evidence for the formation of a C-O bond between adsorbed species

Article Abstract:

The formation of a C-O bond through the thermal activation of adsorbed 2-propyl groups, which takes place in the presence of chemisorbed oxygen on a Ni(100) single-crystal surface, is presented by using the evidence of direct X-ray photoelectron (XPS) and reflection-absorption infrared (RAIRS) spectroscopy. The presence of degree of mobility of one of the reactants is indicated by the recombination of the two intermediate species consisting of alkyl and oxygen adsorbates on the surface through oxygen insertion in the metal-alkyl surface bond.

Carbon, Absorption, Chemistry, Physical and theoretical, Physical chemistry

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Thermal chemistry of iodomethane on Ni(110).2. Effect of Coadsorbed oxygen

Article Abstract:

The effect of coadsorbed oxygen on the thermal chemistry of iodomethane on Ni(110) single-crystal surfaces is studied. It is found that extensive molecular desorption occurs at temperature approximately 60 K higher than those seen for the desorption of multilayer CH3I on the clean surface.

Observations, Crystal structure, Nickel, Hydrocarbons

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Evidence for the formation of nitrogen islands on rhodium surfaces

Article Abstract:

The formation of nitrogen-atom islands on Rh(111) surfaces is presented by kinetic evidence. The isotope-exchange kinetics for the replacement of labeled nitrogen atoms on the surface(super 23) as well as for the production of nitrogen molecules during the steady-state reduction.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Nitrogen, Rhodium, Dynamics, Dynamics (Mechanics), Chemical properties

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