Cation bridging studied by specular neutron reflection

Xiaofan Wang; Seung Yeon Lee; Kathryn Miller; Rebecca Welbourn; Isabella Stocker; Stuart Clarke; Michael Casford; Philipp Gutfreund; Maximilian W.A. Skoda

doi:10.1021/la400767u

Cation bridging studied by specular neutron reflection

Xiaofan Wang, Seung Yeon Lee, Kathryn Miller, Rebecca Welbourn, Isabella Stocker, Stuart Clarke^*, Michael Casford, Philipp Gutfreund, Maximilian W.A. Skoda

^*Corresponding author af dette arbejde

37 Citationer (Scopus)

Abstract

The binding of an anionic surfactant onto an anionic surface by addition of divalent ions is reported based on experimental data from specular neutron reflection (NR) and attenuated total internal reflection IR spectroscopy (ATR-IR). Similar measurements using monovalent ions (sodium) do not show any evidence of such adsorption, even though the amount of surfactant can be much higher. This data is interpreted in terms of the so-called bridging mechanism of ion binding.

Originalsprog	Engelsk
Tidsskrift	Langmuir
Vol/bind	29
Udgave nummer	18
Sider (fra-til)	5520-5527
Antal sider	8
ISSN	0743-7463
DOI	https://doi.org/10.1021/la400767u
Status	Udgivet - 7 maj 2013

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10.1021/la400767uLicens: CC BY

pmc3748452?pdf=renderForlagets udgivne version, 2,96 MBLicens: CC BY

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AU - Wang, Xiaofan

AU - Lee, Seung Yeon

AU - Miller, Kathryn

AU - Welbourn, Rebecca

AU - Stocker, Isabella

AU - Clarke, Stuart

AU - Casford, Michael

AU - Gutfreund, Philipp

AU - Skoda, Maximilian W.A.

PY - 2013/5/7

Y1 - 2013/5/7

N2 - The binding of an anionic surfactant onto an anionic surface by addition of divalent ions is reported based on experimental data from specular neutron reflection (NR) and attenuated total internal reflection IR spectroscopy (ATR-IR). Similar measurements using monovalent ions (sodium) do not show any evidence of such adsorption, even though the amount of surfactant can be much higher. This data is interpreted in terms of the so-called bridging mechanism of ion binding.

AB - The binding of an anionic surfactant onto an anionic surface by addition of divalent ions is reported based on experimental data from specular neutron reflection (NR) and attenuated total internal reflection IR spectroscopy (ATR-IR). Similar measurements using monovalent ions (sodium) do not show any evidence of such adsorption, even though the amount of surfactant can be much higher. This data is interpreted in terms of the so-called bridging mechanism of ion binding.

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ER -

Cation bridging studied by specular neutron reflection

Abstract

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