An EQCM study on the influence of saccharin on the corrosion properties of nanostructured cobalt and cobalt-iron alloy coatings

Masdek, Nik Rozlin Nik Mohd; Alfantazi, Akram

doi:10.1007/s10008-014-2417-z

Cited by 6 publications

(4 citation statements)

References 57 publications

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“…18 Resonant quartz crystal microbalance methods in combination with electrochemical measurements (electrochemical quartz crystal microbalance; EQCM) represent a powerful tool in the compositional determination of alloy deposits in real time during growth. Examples of recent studies include the influence of additives on the deposition of iron-cobalt alloys, 19 platinum/cobalt/nickel alloys 20 and also, of relevance here, deposition of coppertin alloys from aqueous solution in the presence of gelatin. 21 There are fewer comparable studies in ionic liquids and DES; an example is the study of aluminium and lithium deposition in the characterisation of materials for energy storage applications.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of copper–tin alloys using deep eutectic solvents

Abbott

Alhaji

Ryder

et al. 2016

Transactions of the IMF

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While alloy deposition is a frequently studied topic analysis of the alloy phases formed is a complex and often destructive process. In the current study the complex copper-tin alloy system has been studied in deep eutectic solvents using a variety of electrochemical and surface analysis techniques to determine the mechanism of alloy deposition and composition of deposits. The use of electrochemical quartz crystal microbalance is shown to enable real-time monitoring of alloy composition and the latter is shown to be very dependent upon the concentration of ions in solution. For this system X-ray diffraction was also used to study the phase behaviour of the deposits as a function of solution composition and current density. Finally it was shown for the first time that brighteners used for copper deposition in aqueous solutions also work in ionic liquids.

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Section: Introductionmentioning

confidence: 99%

Electrodeposition of copper–tin alloys using deep eutectic solvents

Abbott

Alhaji

Ryder

et al. 2016

Transactions of the IMF

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“…This may be due to the fact that saccharin can react with the impurities on the surface and form soluble complexes which help in removing the impurities from the surface. 23 When the mass concentration ratio exceeded 3:3, corrosion pits and areas of significant oxidation were observed on the stainless steel surface. This may be due to the fact that as the salicylic acid content decreases, fewer salicylic acid molecules are involved in the reaction on the stainless steel surface, thus failing to form a sufficiently protective film.…”

Section: Resultsmentioning

confidence: 99%

“…Qu et al 22 identified an optimal dosage of 3 to 5 g L −1 for salicylic acid when employed as a brightening agent in the polishing solution. The literature 23 has explored the influence of saccharin, utilised as an electrolyte additive, on the corrosion behaviour of Co and CoFe alloy coatings, with concentrations ranging from 1 to 7 g L −1 . Drawing upon existing literature and the collective experience of our research group, we standardised the total additive quantity to 6 g L −1 .…”

Section: Methodsmentioning

confidence: 99%

Low current density electropolishing and corrosion resistance study of 304 stainless steel

Zhu,

Li,

Wang

et al. 2024

Surface Engineering

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In response to the challenge posed by electrical breakdown occurrences during the conventional current density electrolytic polishing of large-scale stainless steel workpieces, this investigation delved into the parameters of low current density electrolytic polishing process. The study scrutinised the surface morphology and corrosion resistance of 304 stainless steel, employing tools such as metallographic microscopy, a roughness gauge, and an electrochemical workstation. Within a sulphuric acid–phosphoric acid-based electrolyte characterised by a volume ratio of 1:2, the optimal mass concentration ratio of salicylic acid and saccharin was ascertained to be 3:3. By configuring the process parameters to 10 A dm−2 and 20 min, outcomes of electrolytic polishing were obtained that stood on par with the conventional current density approach. The stainless steel surface exhibited a surface roughness measuring a mere 0.08 µm and characterised by a corrosion current density of 1.907 × 10−8 A cm−2 and a corrosion potential of −0.0965 V.

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“…The kinetics of saccharin degradation was also studied by voltammetry, 9 as well as the effect of the sweetener electrodeposition on metal alloys, such as CoFe, Ni-Zn and Cu/Co, which desirable effects such as wear resistance and reduction of alloy roughness were obtained. [22][23][24][25] This interfacial dynamical technique is capable of determining a targeted compound by monitoring its oxidationreduction processes by measuring the electric current as a function of the application of potential in a working electrode, obtaining voltammograms (current-potential curves). Voltammetry admits several techniques, such as cyclic voltammetry, in which the faradaic current is added to a capacitive and the initial potential is the same as the final.…”

mentioning

confidence: 99%

Determination of Saccharin through a Carbon Paste Sensor Modified by Electrodeposition of Silver Film

Aredes¹,

Moreira²,

Amorim³

et al. 2022

J. Electrochem. Soc.

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Saccharin is a synthetic artificial sweetener, widely used in several dietary products. In this work, a graphite and paraffin-based composite electrode (80% m/m in graphite) modified by electrodeposition of silver film was developed to quantify saccharin in samples of commercial sweeteners through cyclic voltammetry. The electrodeposition step consisted of the application of -0.6 V (vs. Ag|AgClsat|KClsat) for 8 minutes under gentle stirring, with the electrode immersed in a solution containing 0.05 mol L-1 silver nitrate. The quantification occurred by cyclic voltammetry between -0.2 V to 0.8 V at 100 mV s-1, the signal being observed at +0.2 V and having ammonium acetate and acetic acid as the electrolyte. For the optimized conditions, a linear behavior between 4 x 10-5 and 9 x 10-4 mol L-1 (R2> 0.99) was observed, with detection and quantification limits of 20.6 μmol L-1 and 62.6 μmol L-1, respectively. To evaluate the accuracy, strategies based on volumetric precipitation and gravimetry were used as comparison procedures in which both the obtained product (silver saccharinate) and the standard saccharin were characterized by different thermoanalytical (TGA-DTG) and spectroscopic techniques (FTIR). The results were compared by a chromatographic method described in the literature and the results were satisfactory and comparable.

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An EQCM study on the influence of saccharin on the corrosion properties of nanostructured cobalt and cobalt-iron alloy coatings

Cited by 6 publications

References 57 publications

Electrodeposition of copper–tin alloys using deep eutectic solvents

Electrodeposition of copper–tin alloys using deep eutectic solvents

Low current density electropolishing and corrosion resistance study of 304 stainless steel

Determination of Saccharin through a Carbon Paste Sensor Modified by Electrodeposition of Silver Film

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