Surface protection of copper by allyl thiourea and hybrid sol–gel coatings

Karthik, Namachivayam; Sethuraman, Mathur Gopalakrishnan

doi:10.1016/j.porgcoat.2015.08.004

Cited by 17 publications

(5 citation statements)

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“…In many instances, a dry gel needs further thermal treatment to be densified [20]. The sol-gel process versatility allows incorporation of additional components that introduce material's complementary functionalities, such as UV protection [21,22], anti-fouling [23,24], anti-reflection [25][26][27][28][29], moisture resistance [29][30][31][32][33], corrosion and adhesion protection [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53], along with the enhancement of mechanical, thermal, and optical properties, opening a wide range of application in several fields of science. Furthermore, this method allows the control of several experimental conditions leading to a simple sequence that may be tuned to the nature, final shape, and desired function.…”

Section: General Background Of Sol-gel Coatings For Corrosion Mitigationmentioning

confidence: 99%

Hybrid Sol-Gel Coatings: Smart and Green Materials for Corrosion Mitigation

et al. 2016

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Corrosion degradation of materials and metallic structures is one of the major issues that give rise to depreciation of assets, causing great financial outlays in their recovery and or prevention. Therefore, the development of active corrosion protection systems for metallic substrates is an issue of prime importance. The promising properties and wide application range of hybrid sol-gel-derived polymers have attracted significant attention over recent decades. The combination of organic polymers and inorganic materials in a single phase provides exceptional possibilities to tailor electrical, optical, anticorrosive, and mechanical properties for diverse applications. This unlimited design concept has led to the development of hybrid coatings for several applications, such as transparent plastics, glasses, and metals to prevent these substrates from permeation, mechanical abrasion, and corrosion, or even for decorative functions. Nevertheless, the development of new hybrid products requires a basic understanding of the fundamental chemistry, as well as of the parameters that influence the processing techniques, which will briefly be discussed. Additionally, this review will also summarize and discuss the most promising sol-gel coatings for corrosion protection of steel, aluminium, and their alloys conducted at an academic level.

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Section: General Background Of Sol-gel Coatings For Corrosion Mitigationmentioning

confidence: 99%

Hybrid Sol-Gel Coatings: Smart and Green Materials for Corrosion Mitigation

et al. 2016

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“…The depressed semi-circle at high frequency can be attributed to the frequency dispersion as a result of the roughness and inhomogeneity of the electrode surface. The low frequency tail is generally known as Warburg's impedance, and may be related to the transportation of soluble copper species (CuCl 2 − ) from the electrode surface to the bulk solution, as well as to the diffusion of dissolved oxygen to the electrode surface [26,27]. Because of the diffusion process, the pure capacitor was substituted with a constant phase element (CPE) to provide a more accurate fit of the EIS data.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Hybrid sol-gel/thiourea binary coating for the mitigation of copper corrosion in neutral medium

Karthik

Lee

Sethuraman

2017

Progress in Organic Coatings

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“…Selectivity and capacity of such adsorbents towards metal ions will largely depend on the number and position of the functions [22], which is also observed for other materials during selective adsorption of the adsorbates of different natures [23,24]. Thus thiocarbamide groups can form stable complexes with metal ions and, for example, protect the surface of copper by combining allylthiourea and some silanes forming a hybrid sol-gel coating [25,26], and could sorb metal ions from aqueous solutions [27,28]. Therefore, the one-pot synthesis of such adsorbents is highly appealing.…”

Section: Introductionmentioning

confidence: 99%