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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la101769y
|2 doi
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|a pubmed24n0665.xml
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|a (NLM)20617851
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Furlong, Octavio J
|e verfasserin
|4 aut
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|a The surface chemistry of dimethyl disulfide on copper
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 07.02.2011
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a The surface chemistry of dimethyl disulfide (DMDS) is studied on a Cu(111) single crystal and a polished copper foil in ultrahigh vacuum as a basis for understanding its tribological chemistry using a combination of temperature-programmed desorption (TPD), reflection-absorption infrared spectroscopy (RAIRS), and X-ray photoelectron spectroscopy (XPS). Low-energy electron diffraction reveals that the polished foil becomes ordered on heating in vacuo and displays identical surface chemistry to that found on the Cu(111) surface. Dimethyl disulfide reacts with the copper surface at 80 K to form thiolate species. Heating the surface to ∼230 K causes a small portion of the thiolate species to decompose to form methyl groups adsorbed on the surface. Further heating results in methane and C(2) hydrocarbon desorption at ∼426 K, due to a reaction of adsorbed methyl species, to completely remove carbon from the surface and to deposit atomic sulfur
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Disulfides
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|a dimethyl disulfide
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|a 3P8D642K5E
|2 NLM
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|a Copper
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|a 789U1901C5
|2 NLM
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|a Miller, Brendan P
|e verfasserin
|4 aut
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|a Li, Zhenjun
|e verfasserin
|4 aut
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|a Walker, Joshua
|e verfasserin
|4 aut
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|a Burkholder, Luke
|e verfasserin
|4 aut
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|a Tysoe, Wilfred T
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 21 vom: 02. Nov., Seite 16375-80
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:26
|g year:2010
|g number:21
|g day:02
|g month:11
|g pages:16375-80
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|u http://dx.doi.org/10.1021/la101769y
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