Hybrid Organic-Inorganic Materials on Metallic Surfaces: Fabrication and Electrochemical Performance

Nashrah, Nisa; Putri, Rosy Amalia Kurnia; Alharissa, Early Zahwa; Zoubi, Wail Al; Ko, Young Gun

doi:10.3390/met11071043

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…Nashrah et al [97] outlined the formation mechanism of hybrid organic-inorganic materials on light metals using PEO and DCC. The researchers pointed out that the interactions between organic molecules and the porous inorganic layer occurred through charge-transfer-type interactions and electrostatic interactions between the electron atom donor and the inorganic components in the coating surface.…”

Section: Hybrid (Inorganic-organic) Corrosion Inhibitorsmentioning

confidence: 99%

An overview on the use of corrosion inhibitors for the corrosion control of Mg and its alloys in diverse media

Umoren

Abdullahi

Solomon

2022

Journal of Materials Research and Technology

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Section: Hybrid (Inorganic-organic) Corrosion Inhibitorsmentioning

confidence: 99%

An overview on the use of corrosion inhibitors for the corrosion control of Mg and its alloys in diverse media

Umoren

Abdullahi

Solomon

2022

Journal of Materials Research and Technology

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“…Generally, when organic substances are added to a base alkaline solution, they tend to interact with the surface of the metallic substrate, and form oxides through their functional groups (-OH, -NH, -COOH, -CO-, etc.). Thus, the organic substances will be incorporated in the final coating generating a hybrid organic-inorganic (HOI) material that could be defined as a micro-composite able to combine the unique properties of both types of materials [8].…”

Section: Introductionmentioning

confidence: 99%

Use of Organic Acids as Additives for Plasma Electrolytic Oxidation (PEO) of Titanium

Ceriani,

Casanova,

Ormellese

2024

Coatings

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The present study investigates the influence of organic acids, added to the electrolytic solution, on the structure, morphology, and corrosion behaviour of plasma electrolytic oxidation (PEO) coatings produced on titanium grade 2. Particular attention is paid to the role of functional groups in the modification of the oxide’s properties. For this reason, all three selected acids, namely glutaric, glutamic, and tartaric acid, display two carboxylic groups, thus they interact with the substrate material mainly through –COO− adsorption. However, glutamic acid also has an amine group, while tartaric acid has two hydroxyl groups. The presence of such additional functional groups is found to impact the formation of the PEO coatings. According to scanning electron microscopy (SEM) analyses, the number of defects and their dimension increase with an increasing number of active groups present in the organic molecules. Then, when glutaric acid with only two carboxyl groups, is employed as an additive, smaller pores are produced. The dimension of defects increases when glutamic and tartaric acid are used. X-ray diffraction (XRD) testing demonstrates that rutile and anatase are present in all the coatings and that when using tartaric acid, a relatively high level of amorphism is reached. The electrochemical and corrosion behaviours are evaluated by potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) performed in a heated sulphuric acid solution. It is found that all types of coatings provide protection against corrosion, with oxides produced using glutamic acid showing the lowest corrosion current density (0.58 mA·m−2) and low corrosion rate (1.02 μm·y−1).

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“…19,20 Unlike the surface molecular imprinting technique, during surface polymerization, the molecular sites are deposited onto the outer layer or surface of the matrix or solid surface; this method generally applies an electro-polymerization technique, namely cyclic voltammetry. 12,21,[24][25][26] The benefits of applying the surface molecular imprinting technique are that it has a higher separation efficiency, faster binding sites, and the thickness of MIPs is controllable. 15,26,27 Furthermore, because no pulverizing step is required after electropolymerization, surface molecular imprinting is preferred for use in the development of an electrochemical sensor.…”

mentioning

confidence: 99%

Sunset Yellow Electrochemical Sensor Based on a Molecularly Imprinted Poly-Glycine Film-Decorated Pencil Graphite Electrode

Setiyanto¹,

Hani²,

Saraswaty³

et al. 2023

J. Electrochem. Soc.

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A simple and selective molecularly imprinted polymer film-based electrochemical sensor is made by electropolymerizing glycine in the presence of sunset yellow (SY) as a template. The thin film electro-polymerization was characterized by cyclic voltammetry and square wave voltammetry. The optimization of important parameters, the removal of sunset yellow from the developed electrode, analytical performance, and the analysis of a real sample are described. The results showed that the developed sensor is highly selective in the presence of interferents such as sodium chloride, glucose, benzoic acid, lemon yellow, and tartrazine up to a 200-fold higher concentration. Under optimized conditions, the linear dynamic range was found to range from 2 to 100 µM, with LOD and LOQ values of 0.753 and 2.48 µM, respectively. When the proposed sensor was used for the evaluation of a real sample (tomato sauce), a similar result was observed in comparison to high-performance liquid chromatography evaluation, indicating the good reliability of our modified sensor. In summary, our proposed sensor is promising for the detection of SY in food products.

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Hybrid Organic-Inorganic Materials on Metallic Surfaces: Fabrication and Electrochemical Performance

Cited by 6 publications

References 32 publications

An overview on the use of corrosion inhibitors for the corrosion control of Mg and its alloys in diverse media

An overview on the use of corrosion inhibitors for the corrosion control of Mg and its alloys in diverse media

Use of Organic Acids as Additives for Plasma Electrolytic Oxidation (PEO) of Titanium

Sunset Yellow Electrochemical Sensor Based on a Molecularly Imprinted Poly-Glycine Film-Decorated Pencil Graphite Electrode

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