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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c01286
|2 doi
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|a pubmed25n1204.xml
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|a eng
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|a Kumar, Anand
|e verfasserin
|4 aut
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|a Specific Ion Effects at the Vapor-Formamide Interface
|b A Reverse Hofmeister Series in Ion Concentration Depth Profiles
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|c 2023
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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 12.09.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Employing neutral impact collision ion scattering spectroscopy (NICISS), we have directly measured the concentration depth profiles (CDPs) of various monovalent ions at the vapor-formamide interface. NICISS provides CDPs of individual ions by measuring the energy loss of neutral helium atoms backscattered from the solution interface. CDPs at the vapor-formamide interface of Cl-, Br-, I-, Na+, K+, and Cs+ are measured and compared to elucidate the interfacial specific ion trends. We report a reverse Hofmeister series in the presence of inorganic ions (anion and cation) at the vapor-formamide interface relative to the water-vapor interface, and the CDPs are found to be independent of the counterion for most ions studied. Thus, ions at the surface of formamide follow a "Hofmeister paradigm" where the counterion does not impact the ion series. These specific ion trends are complemented with surface tension and X-ray absorption near-edge structure (XANES) measurements on formamide electrolyte solutions
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|a Journal Article
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|a Craig, Vincent S J
|e verfasserin
|4 aut
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|a Robertson, Hayden
|e verfasserin
|4 aut
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|a Page, Alister J
|e verfasserin
|4 aut
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|a Webber, Grant B
|e verfasserin
|4 aut
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|a Wanless, Erica J
|e verfasserin
|4 aut
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|a Mitchell, Valerie D
|e verfasserin
|4 aut
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|a Andersson, Gunther G
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 39(2023), 36 vom: 12. Sept., Seite 12618-12626
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
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|g volume:39
|g year:2023
|g number:36
|g day:12
|g month:09
|g pages:12618-12626
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|u http://dx.doi.org/10.1021/acs.langmuir.3c01286
|3 Volltext
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