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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la902721a
|2 doi
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|a pubmed24n0640.xml
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|a eng
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1 |
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|a Salis, Andrea
|e verfasserin
|4 aut
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|a Ion specific surface charge density of SBA-15 mesoporous silica
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
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|a ƒa Online-Ressource
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|a Date Completed 26.04.2010
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|a Date Revised 09.02.2010
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|a published: Print
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|a Citation Status MEDLINE
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|a Potentiometric titrations were used to estimate the surface charge density of SBA-15 mesoporous silica in different salt solutions. It was found that surface charge depends both on cation type, following a Hofmeister series (Cs(+) < Guanidinium(+) < K(+) < Na(+) < Li(+)), and on salt concentration (in the range 0.05-1 M). The surface charge series is reproduced by theoretical calculations performed using a modified Poisson-Boltzmann equation that includes ionic dispersion forces with ab initio ion polarizabilities and hydrated ions. The hydration model assigns an explicit hydration shell to kosmotropic (strong hydrated) ions only. The Hofmeister series appears to be due to the combination of ion-surface dispersion interactions and ion hydration
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Ions
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|a SBA-15
|2 NLM
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|a Salts
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|a Silicon Dioxide
|2 NLM
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|a 7631-86-9
|2 NLM
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| 700 |
1 |
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|a Parsons, Drew F
|e verfasserin
|4 aut
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1 |
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|a Boström, Mathias
|e verfasserin
|4 aut
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1 |
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|a Medda, Luca
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Barse, Brajesh
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ninham, Barry W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Monduzzi, Maura
|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), 4 vom: 16. Feb., Seite 2484-90
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2010
|g number:4
|g day:16
|g month:02
|g pages:2484-90
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|u http://dx.doi.org/10.1021/la902721a
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