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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c01823
|2 doi
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|e rakwb
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|a eng
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|a Massicot, Stephen
|e verfasserin
|4 aut
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|a Adsorption, Wetting, Growth, and Thermal Stability of the Protic Ionic Liquid Diethylmethylammonium Trifluoromethanesulfonate on Ag(111) and Au(111)
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|c 2021
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 09.10.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a We have studied the adsorption, wetting, growth, and thermal evolution of the protic IL diethylmethylammonium trifluoromethanesulfonate ([dema][TfO]) on Au(111) and Ag(111). Ultrathin films were deposited at room temperature (RT) and at 90 K, and were characterized in situ by angle-resolved X-ray photoelectron spectroscopy. For both surfaces, we observe that independent of temperature, initially, a closed 2D wetting layer forms. While the film thickness does not increase past this wetting layer at RT, at 200 K and below, "moderate" 3D island growth occurs on top of the wetting layer. Upon heating, on Au(111), the [dema][TfO] multilayers desorb at 292 K, leaving an intact [dema][TfO] wetting layer, which desorbs intact at 348 K. The behavior on Ag(111) is much more complex. Upon heating [dema][TfO] deposited at 90 K, the [dema]+ cations deprotonate in two steps at 185 and 305 K, yielding H[TfO] and volatile [dema]0. At 355 K, the formed H[TfO] wetting layer partly desorbs (∼50%) and partly decomposes to form an F-containing surface species, which is stable up to 570 K
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|a Journal Article
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|a Sasaki, Tomoya
|e verfasserin
|4 aut
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1 |
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|a Lexow, Matthias
|e verfasserin
|4 aut
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|a Shin, Sunghwan
|e verfasserin
|4 aut
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| 700 |
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|a Maier, Florian
|e verfasserin
|4 aut
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|a Kuwabata, Susumu
|e verfasserin
|4 aut
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|a Steinrück, Hans-Peter
|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 1999
|g 37(2021), 39 vom: 05. Okt., Seite 11552-11560
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:37
|g year:2021
|g number:39
|g day:05
|g month:10
|g pages:11552-11560
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|u http://dx.doi.org/10.1021/acs.langmuir.1c01823
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