Interaction of sulfur dioxide on metallic and oxidized Cu(100) and Cu(110) surfaces investigated by infrared reflection absorption spectroscopy

Article Abstract:

Infrared reflection absorption spectroscopy was used to study the complex behavior of sulfur dioxide on metallic and oxidized copper surfaces. During these tests, Cu(100) and Cu(110) exhibited multiple compounds. Sulfites are molecular entities that tend to form on the metallic, or slightly oxidized Cu(100) surface. Sulfates tend to form on the slightly oxidized Cu(110) surface that has low coordinated surface oxygen atoms. The obtained results on the structure dependence of interacting sulfur dioxide suggests that molecules of this type can be a good probe for determining the reactivity of metallic and oxidic surfaces.

Chemistry, Physical and theoretical, Physical chemistry, Radicals (Chemistry), Infrared spectroscopy, Sulfates, Sulfur dioxide, Sulfites

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Adsorption of (S)-Histidine on Cu(110) and oxygen-covered Cu(110), a combined Fourier transform reflection absorption infrared spectroscopy and force field calculation study

Article Abstract:

(S)-Histidine is one of the strongest metal coordinators among the amino acids is a potential tridenate ligand having three coordinating sites, amino and imidazole nitrogen atoms and a carboxyl group.Adsorption of (S)-histidine on Cu(110), and Cu(110) modified by adsorbed oxygen, is studied by reflection absorption infrared spectroscopy (RAIRS) and the results open new insights into the control of biomolecule-solid surface interactions.

Science & research, Histidine

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Adsorption and reactivity of sulfur dioxide on Cu(110). Influence of oxidation and hydroxylation of the surface

Article Abstract:

Research was conducted to investigate the adsorption and reactivity of sulfur dioxide on Cu(110). The interaction of sulfur dioxide with a Cu(110) surface was examined at room temperature using in situ infrared reflection-absorption spectroscopy. Results provide evidence that the interaction of sulfur dioxide with copper oxide substrate is highly sensitive to the structure of the oxide surface layer and to the chemical state.

Oxidation-reduction reaction, Oxidation-reduction reactions, Reactivity (Chemistry), Hydroxylation, Sulfur compounds

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