Observation of self‐assembled layers of alkyl phosphonic acid on aluminum using low‐voltage scanning electron microscopy and AFM

Sato, Hayaho; Fujii, Takashi; Tsuji, Etsushi; Aoki, Yoshitaka; Shimizu, Kyoko; Skeldon, P.; Thompson, G.E.; Habazaki, H.

doi:10.1002/sia.5217

Cited by 17 publications

(8 citation statements)

References 34 publications

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“…Furthermore, the steplike morphology at the center of the SEM image gives indication that it does not have a uniform thickness. A similar type of multilayered morphology was observed with the self-assembly of phosphonic acid derivatives on aluminum oxide by Hauffman et al (2008Hauffman et al ( , 2012aHauffman et al ( , 2013a and also by Sato et al (2013). After an investigation combining ex situ and in situ techniques, Hauffman et al (2008Hauffman et al ( , 2012a concluded that the layers are not homogeneous in nature and exhibit a continuous grow with immersion time (increasing the number of deposited molecules) according to a Stranski-Krastanov mechanism.…”

Section: Surface Morphology and Wetting Behaviorsupporting

confidence: 58%

Corrosion inhibition of AA3003 aluminum alloy by self-assembled layers of myristic acid

Puc-Oxté

Pech‐Canul

2021

ACMM

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Purpose This paper aims to prepare highly hydrophobic films on aluminum AA3003 using myristic acid (MA) and evaluate its corrosion protection efficiency in a low-chloride solution. Design/methodology/approach The aluminum surface was initially treated with boiling water to develop a porous nanostructure, and then surface modification was carried out in ethanolic solutions with different concentrations of MA. The surface morphology, wetting behavior and film composition were first characterized, and then, the corrosion behavior was evaluated with electrochemical techniques. Findings The best hydrophobicity and corrosion resistance were obtained with 50 mM of MA. For such concentration, a water contact angle of 140° and protective efficiency of 96% were achieved. A multilayer structure was revealed by scanning electron microscope and X-ray photoelectron spectroscopy. Originality/value The results of this work shed light on the anticorrosion performance of fatty acid self-assembled multilayers on the surface of Al–Mn alloys.

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Section: Surface Morphology and Wetting Behaviorsupporting

confidence: 58%

Corrosion inhibition of AA3003 aluminum alloy by self-assembled layers of myristic acid

Puc-Oxté

Pech‐Canul

2021

ACMM

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“…They have concluded that a hydrophobic tail terminated surface is more favorable than a hydrophilic headgroup terminated surface. Additionally, Sato et al 40 have observed formation of hydrophobic multilayer films of tetradecyl phosphonic acid after assembly at room temperature on anodized aluminum.…”

Section: Resultsmentioning

confidence: 99%

The Influence of Thickness of Stearic Acid Self-Assembled Film on Its Protective Properties

Gretić

Mioč

Čadež

et al. 2016

J. Electrochem. Soc.

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Self-assembled mono-and multilayers of stearic acid have been examined as corrosion protection systems for copper-nickel alloy in 3% sodium chloride solution. We found that self-assembled multilayers of stearic acid provide more efficient and durable corrosion protection to copper-nickel alloy than just a single monolayer. Electrochemical techniques, such as potentiodynamic polarization and electrochemical impedance spectroscopy, were used to determine the protective properties of the stearic acids films. Sum frequency generation spectroscopy, atomic force microscopy, contact angle measurements and ellipsometry were used to evaluate structural properties and thickness of the surface layers. It was found that the increase of corrosion protection from mono-to multilayer films depends on the number of layers that are formed but also on their homogeneity.

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“…The experts diagnosed the presence of locally distributed bilayers, but the AFM techniques disclosed the presence of bilayers on the complete surface. They assert that the formation of a uniform SAM monolayer on an oxidized aluminum surface is a complex process [ 127 ].…”

Section: Sam Layers Built From Different Chemicalsmentioning

confidence: 99%

Formation of Self-Assembled Anticorrosion Films on Different Metals

Telegdi

2020

Materials

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The review will first discuss shortly the phenomenon of corrosion and enroll some general possibilities to decrease the rate of this deterioration. The stress will be laid upon the presentation of anticorrosive self-assembled molecular (SAM) layers as well as on the preparation technology that is a simple technique, does not need any special device, and can be applied on different solids (metals or non-metals) alone or in combination. The paper groups the chemicals (mainly amphiphiles) that can develop nanolayers on different pure or oxidized metal surfaces. The history of the self-assembled molecular layer will be discussed from the beginning of the first application up to now. Not only the conditions of the nanofilm preparation as well as their characterization will be discussed, but the methods that can evaluate the corrosion-inhibiting efficiency of the SAM layers under a corrosive environment will be demonstrated as well.

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Observation of self‐assembled layers of alkyl phosphonic acid on aluminum using low‐voltage scanning electron microscopy and AFM

Cited by 17 publications

References 34 publications

Corrosion inhibition of AA3003 aluminum alloy by self-assembled layers of myristic acid

Corrosion inhibition of AA3003 aluminum alloy by self-assembled layers of myristic acid

The Influence of Thickness of Stearic Acid Self-Assembled Film on Its Protective Properties

Formation of Self-Assembled Anticorrosion Films on Different Metals

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