Electrodeposition of Graphene Oxide Modified Composite Coatings Based on Nickel-Chromium Alloy

Целуйкин, В. Н.; Dzhumieva, Asel; Yakovlev, A. V.; Mostovoy, Anton; Lopukhova, Marina

doi:10.3390/cryst11040415

Cited by 6 publications

(4 citation statements)

References 28 publications

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“…The presence of the GO in the ILEG based electrolyte did not significantly change the current transient profile; however, the t max values corresponding to Sn-rGO deposition were shorter than those noticed for Sn ones. This phenomenon could be related either to the adsorption of the GO on the GC surface electrode or to the electro-reduction of GO on the formed nuclei [30,65].…”

Section: Chronoamperometrymentioning

confidence: 99%

Electrodeposition of Tin-Reduced Graphene Oxide Composite from Deep Eutectic Solvents Based on Choline Chloride and Ethylene Glycol

Costovici

Pantazi

Balan

et al. 2023

Metals

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Some experimental results regarding the direct electrodeposition of tin-reduced graphene oxide composite (Sn-rGO) compared to the electrodeposition of tin metal (Sn) from a deep eutectic solvent (DES), namely using choline chloride-ethylene glycol eutectic mixtures, are presented. Raman spectroscopy demonstrated that GO is also reduced during the tin electrodeposition. Scanning electron microscopy (SEM) confirmed the presence of incorporated graphene related material in the composite film. X-ray diffraction patterns showed that the presence of rGO in the deposit diminished preferred orientation of Sn growth along the planes (101), (211), (301), and (112). The analysis of current-time transients involving Scharifker & Hills model has shown that Sn-rGO composite deposition process corresponds to a nucleation and tridimensional growth controlled by diffusion, with nucleation evolving from progressive to instantaneous upon increasing the overpotential. Diffusion coefficients at 25 °C of 9.4 × 10−7 cm2 s−1 for Sn(II) species in the absence and of 14.1 × 10−7 cm2 s−1 in the presence of GO, were determined. The corrosion performance has been assessed through the analysis of the recorded potentiodynamic polarization curves and of the electrochemical impedance spectra during continuous immersion in aerated 0.5 M NaCl aqueous solution at 25 °C for 144 h. A slight improvement of the corrosion performance in the case of the Sn-rGO composite coatings was noticed, as compared to pure Sn ones. Furthermore, the solderability performance has been evaluated. The solder joints showed a proper adhesion to the substrate with no fractures, and wetting angles around 44° have been determined, suggesting adequate solderability characteristics.

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Section: Chronoamperometrymentioning

confidence: 99%

Electrodeposition of Tin-Reduced Graphene Oxide Composite from Deep Eutectic Solvents Based on Choline Chloride and Ethylene Glycol

Costovici

Pantazi

Balan

et al. 2023

Metals

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“…The initial drop of the current density may be related to the preparation (e.g., passivation) of the metallic surface for GO deposition. The latter is a typical process in the electrodeposition of conductive films on active metals [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

Cysewska¹,

Łapiński²,

Zając³

et al. 2023

Beilstein J. Nanotechnol.

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In this work, the specific role of the addition of graphene oxide (GO) to state-of-the-art nickel–iron (NiFe) and cobalt–nickel–iron (CoNiFe) mixed oxides/hydroxides towards the oxygen evolution reaction (OER) is investigated. Morphology, structure, and OER catalytic activity of the catalysts with and without GO were studied. The catalysts were fabricated via a two-step electrodeposition. The first step included the deposition of GO flakes, which, in the second step, were reduced during the simultaneous deposition of NiFe or CoNiFe. As a result, NiFe-GO and CoNiFe-GO were fabricated without any additives directly on the nickel foam substrate. A significant improvement of the OER activity was observed after combining NiFe with GO (OER overpotential η(10 mA·cm−2): 210 mV) compared to NiFe (η: 235 mV) and GO (η: 320 mV) alone. A different OER activity was observed for CoNiFe-GO. Here, the overall catalytic activity (η: 230 mV) increased compared to GO alone. However, it was reduced in comparison to CoNiFe (η: 224 mV). The latter was associated with the change in the morphology and structure of the catalysts. Further OER studies showed that each of the catalysts specifically influenced the process. The improvement in the OER by NiFe-GO results mainly from the structure of NiFe and the electroactive surface area of GO.

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“…[44][45][46] Therefore, electrodeposition seems to be a promising technique of preparing PANI(GO)-based materials without additives. However, only a few publications have been found on electrodeposition of PANI-or GO-based materials.. [47][48][49] So the novelty of the present work is in the creation of ultrathin Ni-PANI@GO composite film on the surface of the nickel foam by means of electrodeposition technique. Ni-PANI@GO composite electrodes established a substantial electrochemical performance for capacitance and water splitting process without any binder.…”

Section: Introductionmentioning

confidence: 99%

“…However, only a few publications have been found on electrodeposition of PANI‐ or GO‐based materials. [47–49] …”

Section: Introductionmentioning

confidence: 99%

Fabrication of Ni‐Polyaniline/Graphene Oxide Composite Electrode with High Capacitance and Water Splitting Activity

Myasoedova,

Nedoedkova,

Kalusulingam

et al. 2024

ChemPhysChem

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The Ni‐PANI@GO composite electrode was fabricated via cost effective electrodeposition technique. According to the XRD, FTIR, Raman, SEM, and XPS analyses revealed that the nickel doped PANI@GO composite has been fabricated on the surface of the nickel foam. Addition of nickel significantly enhanced interaction between graphene with PANI leading to higher degree of polyaniline doping though imine groups. Electrochemical investigation revelated the significant performance of the Ni‐PANI@GO composite electrode, boosting an impressive capacitance of 4480 F/g at 40 A/g, surpassing previous Ni‐foam‐based binder‐free electrodes. Notably, Ni‐PANI@GO electrode displayed excellent catalytic activity in both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), generating a considerable volume of the gas bubbles at relatively modest overpotentials of 279 mV and 244 mV respectively. This event allows for the achievement of 20 mA·cm−2 current density. Furthermore, in the laboratory‐scale water electrolyzer, a low cell voltage of 1.72 V was achieved, facilitating a water‐splitting current density of 20 mA·cm−2. This study underscores the premising potential for the real‐world device’s application of the versatile Ni‐PANI@GO composite electrode

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Electrodeposition of Graphene Oxide Modified Composite Coatings Based on Nickel-Chromium Alloy

Cited by 6 publications

References 28 publications

Electrodeposition of Tin-Reduced Graphene Oxide Composite from Deep Eutectic Solvents Based on Choline Chloride and Ethylene Glycol

Electrodeposition of Tin-Reduced Graphene Oxide Composite from Deep Eutectic Solvents Based on Choline Chloride and Ethylene Glycol

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

Fabrication of Ni‐Polyaniline/Graphene Oxide Composite Electrode with High Capacitance and Water Splitting Activity

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