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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b03814
|2 doi
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|a pubmed24n0890.xml
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|a (DE-627)NLM267085141
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|a (NLM)27960056
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Söngen, Hagen
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Chemical Identification at the Solid-Liquid Interface
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 02.08.2017
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|a Date Revised 02.08.2017
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Solid-liquid interfaces are decisive for a wide range of natural and technological processes, including fields as diverse as geochemistry and environmental science as well as catalysis and corrosion protection. Dynamic atomic force microscopy nowadays provides unparalleled structural insights into solid-liquid interfaces, including the solvation structure above the surface. In contrast, chemical identification of individual interfacial atoms still remains a considerable challenge. So far, an identification of chemically alike atoms in a surface alloy has only been demonstrated under well-controlled ultrahigh vacuum conditions. In liquids, the recent advent of three-dimensional force mapping has opened the potential to discriminate between anionic and cationic surface species. However, a full chemical identification will also include the far more challenging situation of alike interfacial atoms (i.e., with the same net charge). Here we demonstrate the chemical identification capabilities of dynamic atomic force microscopy at solid-liquid interfaces by identifying Ca and Mg cations at the dolomite-water interface. Analyzing site-specific vertical positions of hydration layers and comparing them with molecular dynamics simulations unambiguously unravels the minute but decisive difference in ion hydration and provides a clear means for telling calcium and magnesium ions apart. Our work, thus, demonstrates the chemical identification capabilities of dynamic AFM at the solid-liquid interface
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Marutschke, Christoph
|e verfasserin
|4 aut
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|a Spijker, Peter
|e verfasserin
|4 aut
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|a Holmgren, Eric
|e verfasserin
|4 aut
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|a Hermes, Ilka
|e verfasserin
|4 aut
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|a Bechstein, Ralf
|e verfasserin
|4 aut
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|a Klassen, Stefanie
|e verfasserin
|4 aut
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|a Tracey, John
|e verfasserin
|4 aut
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|a Foster, Adam S
|e verfasserin
|4 aut
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| 700 |
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|a Kühnle, Angelika
|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 33(2017), 1 vom: 10. Jan., Seite 125-129
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:33
|g year:2017
|g number:1
|g day:10
|g month:01
|g pages:125-129
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|u http://dx.doi.org/10.1021/acs.langmuir.6b03814
|3 Volltext
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