Adsorption Studies of Organophosphonic Acids on Differently Activated Gold Surfaces

In this study, the formation of self-assembled monolayers consisting of three organophosphonic acids (vinyl-, octyl-, and tetradecylphosphonic acid) from isopropanol solutions onto differently activated gold surfaces is studied in situ and in real time using multiparameter surface plasmon resonance...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 32(2016), 6 vom: 16. Feb., Seite 1550-9
1. Verfasser: Niegelhell, Katrin (VerfasserIn)
Weitere Verfasser: Leimgruber, Simon, Grießer, Thomas, Brandl, Christian, Chernev, Boril, Schennach, Robert, Trimmel, Gregor, Spirk, Stefan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
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520 |a In this study, the formation of self-assembled monolayers consisting of three organophosphonic acids (vinyl-, octyl-, and tetradecylphosphonic acid) from isopropanol solutions onto differently activated gold surfaces is studied in situ and in real time using multiparameter surface plasmon resonance (MP-SPR). Data retrieved from MP-SPR measurements revealed similar adsorption kinetics for all investigated organophosphonic acids (PA). The layer thickness of the immobilized PA is in the range of 0.6-1.8 nm corresponding to monolayer-like coverage and correlates with the length of the hydrocarbon chain of the PA molecules. After sintering the surfaces, the PA are irreversibly attached onto the surfaces as proven by X-ray photoelectron spectroscopy and attenuated total reflection infrared and grazing incidence infrared spectroscopy. Potential adsorption modes and interaction mechanisms are proposed 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
700 1 |a Leimgruber, Simon  |e verfasserin  |4 aut 
700 1 |a Grießer, Thomas  |e verfasserin  |4 aut 
700 1 |a Brandl, Christian  |e verfasserin  |4 aut 
700 1 |a Chernev, Boril  |e verfasserin  |4 aut 
700 1 |a Schennach, Robert  |e verfasserin  |4 aut 
700 1 |a Trimmel, Gregor  |e verfasserin  |4 aut 
700 1 |a Spirk, Stefan  |e verfasserin  |4 aut 
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