Oxidation protection of copper surfaces using self-assembled monolayers of octadecanethiol

Hutt, David A.; Liu, Changqing

doi:10.1016/j.apsusc.2005.01.019

Cited by 112 publications

(77 citation statements)

References 46 publications

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“…Hutt and Liu [23] showed that a thiol layer on copper will withstand oxidation at low temperatures but at ambient temperatures an oxide layer formed over a few weeks, mostly comprised of Cu2O. In the measurements performed here the thiol solution remains active and so reduction of the newly formed oxide can continue, generating the copper (I) thiolate film.…”

Section: Infrared Measurementsmentioning

confidence: 79%

The Self Assembly of Superhydrophobic Copper Thiolate Films on Copper in Thiol Solutions

Whitley¹,

Newton²,

McHale³

et al. 2016

Nano Online

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It is common to think of thiols as molecules that form self-assembled monolayers on gold or similar metals, they have also been used as corrosion inhibitors on copper and steel, but we show here that if the copper remains in thiol solution corrosion is accelerated and a thick layer of corrosion products with a very rough surface forms. The layer is superhydrophobic; repelling water so effectively that it rolls off leaving the surface completely dry. It is composed of a copper (I) thiolate complex and growth occurs quite rapidly under normal conditions. The film morphology depends upon the solvent and thiol used. The presence of organic amines in the solution leads to the formation of thinner layers by removing corrosion products into solution, allowing the removal of native oxide layers.

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Section: Infrared Measurementsmentioning

confidence: 79%

The Self Assembly of Superhydrophobic Copper Thiolate Films on Copper in Thiol Solutions

Whitley¹,

Newton²,

McHale³

et al. 2016

Nano Online

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show abstract

“…10c shows a single contribution that can be attributed to either Cu(I) [32,33], but excludes the presence of copper atoms in the oxidation state +2. The distinction between Cu(I) and Cu(0) can be achieved in the auger region of the spectrum and clearly there is presence of the peak at 930 eV, attributable to Cu(I) species [34], and a lower shoulder lying at 958 eV, ascribable to Cu. In fact, it is possible that the presence of Cu species appears as a broad signal at ∼531.6 eV for hydrated copper oxide and at 530 eV for crystalline Cu 2 O species due to possible humidity of the sample [35,36].…”

Section: Resultsmentioning

confidence: 96%

Synthesis and Characterization of LaBa2Cu3O7−δ System by Combustion Technique

Rivera

Cuaspud

Vargas

et al. 2016

J Supercond Nov Magn

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This paper reports the synthesis and characterization of a lanthanum-barium-copper oxide, based on a LaBa 2 Cu 3 O 7 system, using a wet chemical route that enables the combustion-polymerization of citrate species, in order to generate materials with enhanced surface and textural and morphological properties for potential applications. The synthesized precursor in a form of a coordination complex was characterized by Fourier transform infrared spectroscopy (FTIR) analysis in order to evaluate the formation of homogeneous and soluble citrate species as intermediates of reaction. The morphological and structural characterizations were performed over calcined material with X-ray diffraction (XRD) and electron microscopy (scanning electron microscopy (SEM)-transmission electron microscopy (TEM)) analyses, confirming the obtention of an orthorhombic crystalline phase type Pmmm (47) in the nanometric range ≈8.9 nm. Analyses of the ceramic oxide by Raman spectroscopy and X-ray photoelectron Pátria, 156, Niterói, 24210-240, Brazil spectroscopy (XPS) allowed to perform qualitative and quantitative assessments of the material composition, showing that the final oxide is closely related to the desired composition, discarding the presence of carbonaceous residues of the synthesis process.

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“…Since then, many different substances on different metals and alloys have been proven to be effective against corrosion. The list includes thiols [6][7][8][9][10][11][12][13][14][15][16][17][18][19], amines [12], phosphates [20], sulfates [21], thiosulfates [22], carboxylic acids [23][24][25][26][27][28][29], hydroxamic acids [29][30][31], amino acids [32][33][34], phosphonic acids [29,35], sulfonic acids [29], silane derivatives [36], as well as heterocyclic and other compounds [16,[37][38][39][40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Polystyrene films as barrier layers for corrosion protection of copper and copper alloys

Románszki

Datsenko

May

et al. 2014

Bioelectrochemistry

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Dip-coated polystyrene layers of sub-micrometre thickness (85-500 nm) have been applied on copper and copper alloys (aluminium brass, copper-nickel 70/30), as well as on stainless steel 304, and produced an effective barrier against corrosion and adhesion of corrosion-relevant microorganisms. According to the dynamic wettability measurements, the coatings exhibited high advancing (103°), receding (79°) and equilibrium (87°) contact angles, low contact angle hysteresis (6°) and surface free energy (31 mJ/m 2 ). The corrosion rate of copper-nickel 70/30 alloy samples in 3.5% NaCl was as low as 3.2 µm/a (44% of that of the uncoated samples), and in artificial seawater was only 0.9 µm/a (29% of that of the uncoated samples). Cell adhesion was studied by fluorescence microscopy, using monoculture of Desulfovibrio alaskensis. The coatings not only decreased the corrosion rate but markedly reduced the number of bacterial cells adhered to the coated surfaces. The PS-coating on copper gave the best result, 2×10 3 cells/cm 2 (1% of that of the uncoated control).

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Oxidation protection of copper surfaces using self-assembled monolayers of octadecanethiol

Cited by 112 publications

References 46 publications

The Self Assembly of Superhydrophobic Copper Thiolate Films on Copper in Thiol Solutions

The Self Assembly of Superhydrophobic Copper Thiolate Films on Copper in Thiol Solutions

Synthesis and Characterization of LaBa2Cu3O7−δ System by Combustion Technique

Polystyrene films as barrier layers for corrosion protection of copper and copper alloys

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