Electrochemical corrosion behavior of nano-coated Ti-6Al-4V alloy by a novel chitosan nanoparticles /silver nanoparticles in artificial saliva solution

Fekry, Amany M.; Sayed, Mohamed

doi:10.21608/ejchem.2018.3537.1298

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…The results suggest the presence of silver atomic nuclei with a remarkable amount. The DEX analyses obtained were very close to that published by A.M. Fekry et All [ 15 , 16 ].…”

Section: Resultssupporting

confidence: 87%

A simple platform for the electro-catalytic detection of the dimetridazole using an electrochemical sensor fabricated by electro-deposition of Ag on carbon graphite: application: orange juice, tomato juice and tap water

Zoubir

Bakas

Assabbane

2021

Heliyon

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The objective of this paper is to evaluate and optimize the experimental parameters of the electro-deposition of silver atom nuclei on a graphite carbon paste to elaborate an electrochemical sensor. The electro-deposition process was performed using the cyclic voltammetry. The electrochemical studies show that the deposited silver micro-particle array offers an excellent electro-catalytic activity towards the NO 2 attractor group of the dimetridazole side chain. SEM morphological analysis of the silver deposits indicates the presence of a large number of Ag micro-particles on the graphite carbon with good nucleation. The size of the Ag micro-particles is of the order of 19,7621 μm and their distribution is normal over the entire range of the pulp. DRX analysis of the deposit also indicates that the microcrystalline structure of the silver microcrystals in the deposit is face-centered cubic. The electrochemical behavior of dimetridazole is totally irreversible, the transfer process is controlled by diffusion phenomena on the surface of the electrode covered by a silver deposit realized μAg@CPE. The analytical performance of the constructed electrode shows a good selectivity. Calibration curves for the detection of dimetridazole have been drawn in the concentration range of 3,5 × 10 −4 mol/L to 10 −6 mol/L using cyclic voltammetry method, with a detection and quantification limits of 6.565 × 10 −7 mol/L and 2.216 × 10 −6 mol/L respectively. The applicability of the constructed electrode has been tested in real samples including orange juice, tomato juice, tap water. The results obtained show a recovery rate above 94%, which is very satisfactory.

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“…The results suggest the presence of silver atomic nuclei with a remarkable amount. The DEX analyses obtained were very close to that published by A.M. Fekry et All [ 15 , 16 ].…”

Section: Resultssupporting

confidence: 87%

A simple platform for the electro-catalytic detection of the dimetridazole using an electrochemical sensor fabricated by electro-deposition of Ag on carbon graphite: application: orange juice, tomato juice and tap water

Zoubir

Bakas

Assabbane

2021

Heliyon

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“…Figure 6 displays the EIS data for Mo electrodes in phosphoric acid of different concentrations (3.0-13 M). Bode plots demonstrated a wide maximum phase diagram, representing the existence of three-time constants [47][48][49] . Fitting of the spectra has been done by means of a three-time constant model in which three parallel CPEs (Q 1 , Q 2, and Q 3 ) were utilized (Fig.…”

Section: Eis Measurementsmentioning

confidence: 99%

Experimental and theoretical studies for corrosion of molybdenum electrode using streptomycin drug in phosphoric acid medium

Medany

Ahmad

Fekry

2023

Sci Rep

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Corrosion inhibition of molybdenum electrode in H3PO4 acid medium of different concentrations (3.0 to 13 M) has been investigated utilizing different electrochemical techniques. It was observed that the most corrosive concentration is 3.0 M orthophosphoric acid concentration. The effect of adding Cl− to 3.0 M orthophosphoric acid in the concentration range of 0.1 to 1.0 M was also studied. This study showed that the most corrosive medium is 3.0 M containing 1.0 M chloride ion with the greatest rate of hydrogen production. In 3.0 M H3PO4 acid with 1.0 M of NaCl, the tested electrode's corrosion and hydrogen production may be successfully suppressed by adding Streptomycin of 10 mM concentration leading to high inhibition efficiency. The outcomes of the studies were confirmed by scanning electron microscopic examination. Additionally, a computational chemistry approach was used to investigate how streptomycin adsorbs and inhibits corrosion at the interface of metal surfaces, and the outcomes of the computational studies are in excellent accord with the experimental findings.

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Microstructure-Hardness Relationships in Subzero Quenched and Aged TC21 α/β Titanium Alloy

El-Shorbagy¹,

Hussein²,

El-Banna³

et al. 2019

Egypt. J. Chem.

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T ITANIUM alloys have long been recognized as outstanding strong, light and corrosion resistant alloys. TC21 alloy has recently received considerable attention due to its high strength, toughness, damage-tolerance properties and low crack propagation rate. Similar to steels, titanium alloys have demonstrated their capacity to produce martensitic microstructure upon suitable heat treatment. Their martensite and its transformations upon subsequent heat treatment proved to be an important tool to obtain controllable properties. The martensite (start) characteristic temperature (M s) has received some attention as regards its dependence on composition. On the other hand, no similar attention was given to the dependence of the other important martensitic (finish) characteristic temperature (M f) on composition. In view of the foregoing, this work was thus planned to fulfill this lacking information via subzero hardening treatments of TC21 α/β alloy. Detailed analysis of the so obtained microstructures via optical and scanning microscopy, and x-ray diffraction data has led to a quantitative estimation of the M f temperature and its composition dependence. Additionally, the hardening effect of those subzero hardening treatments was studied via hardness and microhardness measurements. Significant findings were recorded which are expected to help reaching useful property levels such as strength, wear resistance and damagetolerance.

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Electrochemical corrosion behavior of nano-coated Ti-6Al-4V alloy by a novel chitosan nanoparticles /silver nanoparticles in artificial saliva solution

Cited by 3 publications

References 18 publications

A simple platform for the electro-catalytic detection of the dimetridazole using an electrochemical sensor fabricated by electro-deposition of Ag on carbon graphite: application: orange juice, tomato juice and tap water

A simple platform for the electro-catalytic detection of the dimetridazole using an electrochemical sensor fabricated by electro-deposition of Ag on carbon graphite: application: orange juice, tomato juice and tap water

Experimental and theoretical studies for corrosion of molybdenum electrode using streptomycin drug in phosphoric acid medium

Microstructure-Hardness Relationships in Subzero Quenched and Aged TC21 α/β Titanium Alloy

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