Dealloying

Heidersbach, Robert H.

doi:10.1002/9780470872864.ch11

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…11,12 Corrosion inhibitors, divided into inorganic and organic inhibitors, reduce the rate of corrosion and degradation. 13 In the last decades, research has been devoted to copper corrosion and protection by selecting appropriate non-toxic and eco-friendly corrosion inhibitors in order to minimize corrosion-related damages. In general, the efficiency of inorganic inhibitors is lower than that of organic ones.…”

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confidence: 99%

Study Of Mercaptobenzimidazoles As Inhibitors For Copper Corrosion: Down to the Molecular Scale

Neupane

Losada-Pérez

Tiringer

et al. 2021

J. Electrochem. Soc.

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The initiation of a corrosion process can be triggered by defects in the spatial distribution and molecular organization in the adsorbed layer of surfactant inhibitors. A detailed knowledge of the intermolecular forces between the inhibitor molecules and the interfacial bonding between the molecules and metal (oxide) surface will be decisive to unravel the mechanisms driving the initiation of corrosion and surface protection. In this work, adsorbed organic layers of two mercapto-based benzimidazole molecules, 5-methoxy-2-mercapto-benzimidazole (SH-BimH-5OMe) and 5-amino-2mercapto-benzimidazole (SH-BimH-5NH2) were studied regarding their inhibition performance of copper corrosion. Atomic force microscopy was used to address the stability and intermolecular forces of the self-assembled monolayers, using imaging and force measurement modes. For a film formed by amino derivative molecules, molecular fishing by a gold coated AFM tip frequently occurred. For molecular layers of the methoxy derivative, no fishing events were observed, indicating the formation of a constant functional performance layers. X-ray photoelectron spectroscopy revealed that SH-BimH-5OMe molecules form a stronger surface bond strength/interfacial bonding SAM layers on Cu surfaces as compared to SH-BimH-5NH2 molecules. Results of computational DFT modelling and electrochemical corrosion tests are in line with the AFM and XPS results.

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confidence: 99%

Study Of Mercaptobenzimidazoles As Inhibitors For Copper Corrosion: Down to the Molecular Scale

Neupane

Losada-Pérez

Tiringer

et al. 2021

J. Electrochem. Soc.

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“…The one shown is a good example to demonstrate that implementing galvanic lithotrophy may clearly have an impact on the improvement of microbial electrochemical technologies, and stressing the concept of galvanic lithotrophy may unravel connections not previously considered, for example, for improving cathodic protection systems 40 that may have been stressed by biological electron consumption, or for reconsidering new approaches that use magnesium as an alloying element to improve the corrosion resistance of prosthetic devices. 41–43 At a global scale, it is known that pyrite and other conductive minerals (magnetite, graphite, and biochar) confer high conductivity to soils 44 and may be capable of transporting electrons over distances that can reach tens of centimeters 45 allowing the exchange of electrons between microbial species.…”

Section: Resultsmentioning

confidence: 93%