Alkanethiol monolayers at reduced and oxidized zinc surfaces with corrosion protection: A sum frequency generation and electrochemistry investigation
Article Abstract:
The sum frequency generation (SFG) spectroscopy, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) are used to show that octadecanethiol (ODT) forms ordered monolayers at either electrochemically reduced or oxidized Zn surfaces. ODT monolayers show corrosion protection to underlying zinc at the early immersion stage in base, salt and acid media, but the protection efficiency is reduced with immersion due to the presence of defects within the monolayers.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Preparation of alkanethiol monolayers on mild steel surfaces studied with sum frequency generation and electrochemistry
Article Abstract:
An n-alkenethiol, octadecanethiol (ODT), monolayer was successfully prepared onto an oxide-free mild steel (MS) surface under cathodic polarization in a 0.1 M LiCl/CH(sub 3)OH solution containing 1mM ODT. Cyclic voltammetry CV) and electrochemical impedence (EIS) and sum frequency generation (SFG) spectroscopy were applied to study and characterize the adsorption of ODT at a MS surface.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
User Contributions:
Comment about this article or add new information about this topic:
Surface microscopic structure and electrochemical rectification of a branched alkanethiol self-assembled monolayer
Article Abstract:
A combination of scanning tunneling microscopy (STM) and electrochemistry in aqueous environments is used to study the lattice structure of short-chain branched alkanethiol self-assembled monolayers (SAMs). The analysis shows that electrochemical rectification originates in localized electronic effects and is a very important characteristic of short-chain branched alkanethiol SAMs.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Thermal chemistry of styrene on Si(100)2x1 and modified surfaces: Electron-mediated condensation oligomerization and posthydrogenation reactions
- Abstracts: Unusual hydrogen effect in olefin dehydrogenation: 1-methylcyclohexene dehydrogenation initiated by excess hydrogen over Pt(111) surfaces, a combined sum frequency generation spectroscopy and kinetic study
- Abstracts: Alkylphosphonate modified aluminum oxide surfaces. Vanadium oxides on aluminum oxide supports. 2. Structure, vibrational properties, and reducibility of V2O5 clusters on alpha-Al2O3(0001)
- Abstracts: Photostimulated reactions at the surface of wide band-gap metal oxides (ZrO2 and TiO2): interdependence of rates of reactions on pressure-concentration and on light intensity
- Abstracts: Molecular dynamics simulations applied to electric field induced second harmonic generation in dipolar chromophore solutions