Evidence for C-H...O=C bonding in coadsorbed-carbonyl systems on Pt(111)

Article Abstract:

The coadsorption of ethyl formate, acetone, and methyl pyruvate with benzene and napthalene on Pt(111) was studied with reflection adsorption infrared spectroscopy and thermal desorption measurements. The result suggests an attractive carbonyl-aromatic interaction that weakens or removes the direct interaction of the carbonyl function with the metal surface.

Petroleum Refineries, Petroleum refining, Naphtha, Platinum compounds

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Perturbation of adsorbed CO by amine derivatives coadsorbed on the gamma-Al(sub 2)O(sub 3) surface: FTIR and first principles studies

Article Abstract:

The coadsorption of CO and triethylenediamine (TEDA) on a high-area gamma-Al2O3 surface is investigated with use of transmission FTIR spectroscopy. The results have showed that strong bonding of adsorbed CO with TEDA molecules does not occur and that the observed decrease in the binding energy of CO when coadsorbed with TEDA on gamma-Al2O3 is expected.

Industrial Gas Manufacturing, Industrial gases, Carbon Monoxide, Usage, Optical properties, Amines, Fourier transform infrared spectroscopy

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Adsorption of polymers on inorganic solid acids investigated by means of coadsorbed solvatochromic probes

Article Abstract:

A study was conducted, with a specific empirical concept, to determine the surface polarity of inorganic particles, when uncharged polymers are adsorbed from moderately polar organic solvents. The result shows an influence of solvent relates to that obtained for HBA polymers on inorganic particles.

Polymers, Organic solvents, Inorganic polymers

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