Proton Transfer versus Hydrogen Bonding: The Reduction of Ubiquinone Q2Incorporated in a Self-Assembled Monolayer in Unbuffered Aqueous Solution

2014 ◽  
Vol 1 (12) ◽  
pp. 2116-2123 ◽  
Author(s):  
Cédric Liehn ◽  
Marcel Bouvet ◽  
Rita Meunier-Prest
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonding ◽  
Proton Transfer ◽  
Self Assembled Monolayer ◽  
Self Assembled

Experiments and Molecular Simulations to Study the Role of Coadsorption of Oil in Corrosion Inhibitor Films in Improving Corrosion Mitigation

CORROSION ◽  
10.5006/3606 ◽  
2020 ◽  
Vol 76 (11) ◽  
Author(s):  
Xueying Ko ◽  
Juan Dominguez Olivo ◽  
Bruce Brown ◽  
Srdjan Nešić ◽  
Sumit Sharma
Keyword(s):  
Aqueous Solution ◽  
Corrosion Inhibitor ◽  
Metal Surfaces ◽  
Laboratory Experiments ◽  
Field Experience ◽  
Molecular Simulations ◽  
Self Assembled Monolayer ◽  
Polar Head ◽  
Self Assembled

While both field experience and laboratory experiments have shown that the efficiency of adsorbed corrosion inhibitor films improves upon exposure of the aqueous solution to a hydrocarbon phase, a credible explanation of these results is lacking. Using a combination of experiments and molecular simulations, this study examines how exposure to oil molecules affects the nature of adsorbed corrosion inhibitor films on metal surfaces. It is found that oil molecules get coadsorbed in the corrosion inhibitor films, making them more hydrophobic, structurally more ordered, and well packed. Corrosion inhibitor molecules with a bulky polar head adsorb in nonplanar, cylinder-like morphologies. Coadsorption of oil molecules changes the morphology of these films to a planar self-assembled monolayer.

Formation, Patterning, and Polymerization of Surface Adlayers Using Self-Assembled Monolayers as Templates

2003 ◽  
Vol 776 ◽  
Author(s):  
David W. Mosley ◽  
Mark A. Sellmyer ◽  
Joseph Jacobson
Keyword(s):  
Hydrogen Bonding ◽  
Soft Lithography ◽  
Self Assembled Monolayers ◽  
Two Dimensional ◽  
Amide Hydrogen ◽  
Self Assembled Monolayer ◽  
Hydrogen Bonding Interactions ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Processing Stability

AbstractOrdered surface adlayers of diacetylene-containing molecules were formed using amide hydrogen-bonding interactions with a pre-formed self-assembled monolayer on gold. Photopolymerization of the diacetylene molecules in the adlayer results in enhanced solvent and processing stability of the adlayer. Patterning of the base monolayer using soft lithography techniques allows patterning of the adlayer as well, and may lead to methods for templating soluble two-dimensional monolayer sheets.

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