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XP spectra of a Cu(110) surface exposed to methyl mercaptan at 290 K show the presence of an adsorbate assigned to mercaptide, CH 3 S(a). Scanning tunneling microscopic (STM) images show that the formation of the adsorbed mercaptide (CH 3 S(a)) is accompanied by a restructuring of the surface. The reconstructed surface is characterized by very narrow terraces (typically 10-15 Å wide)...
A detailed understanding of the sulfur phases formed by the dissociation of hydrogen sulfide and methyl mercaptan at Cu(110) surfaces has been obtained in a combined STM/X-ray photoelectron spectroscopy study. At low concentrations adsorbed sulfur atoms are mobile at room temperature, forming the ordered c(2x2) structures only when the concentration of sulfur reaches approximately 3.8x10 1 ...
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