Effect of the low magnetic field on the electrodeposition of CoxNi100−x alloys

Olvera, S.; Arce-Estrada, E.M.; Sánchez-Marcos, J.; Palomares, F. J.; Vazquez, L.; Herrasti, P.

doi:10.1016/j.matchar.2015.05.002

Cited by 22 publications

(12 citation statements)

References 34 publications

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“…It can be seen that the electrodeposited Co 3 O 4 exhibits diffraction peaks at 19.4°, 38.25°, and 66.5°, which are corresponding to the (1 1 1), (3 1 1), and (4 4 0) planes of Co 3 O 4 cubic structure (COD, 9005887). Under magnetic field effect, the (1 1 1) plane of Co 3 O 4 (MF) is absent and it is deduced that the Co 3 O 4 (MF) crystal (3 1 1) and (4 4 0) planes are in the energetically favorable directions of magnetization, therefore enhancing the crystal growth along these directions, as reported by other studies. , The crystallite size of the samples was calculated by the Scherrer equation, and it is found that Co 3 O 4 (MF) and Co 3 O 4 have small crystallite size of 3.2 and 1.6 nm, respectively.…”

Section: Results and Discussionsupporting

confidence: 55%

“…44 0) planes are in the energetically favorable directions of magnetization, therefore enhancing the crystal growth along these directions, as reported by other studies. 16,21 The crystallite size of the samples was calculated by the Scherrer equation, 22 and it is found that Co 3 O 4 (MF) and Co 3 O 4 have small crystallite size of 3.2 and 1.6 nm, respectively.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

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Magnetic Electrodeposition of the Hierarchical Cobalt Oxide Nanostructure from Spent Lithium-Ion Batteries: Its Application as a Supercapacitor Electrode

et al. 2018

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In this study, electrodeposition of cobalt oxide (Co 3 O 4 ) from spent lithium-ion batteries is successfully enhanced by the magnetic field effect. In the presence of magnetic field, well-defined hierarchical Co 3 O 4 nanostructures with higher electroactive surface area are formed during the electrodeposition process. Electrochemical analysis shows that the enhanced Co 3 O 4 nanostructures exhibit excellent charge storage capabilities of 1273 F g −1 at 1 A g −1 , approximately 4 times higher than the electrodeposited Co 3 O 4 that is formed without magnetic field effect. It also reveals the high cycling stability of enhanced Co 3 O 4 nanostructures, with 96% capacitance retention at 5000 charge discharge cycles. The results manifest the enhancement of Co 3 O 4 recovery from spent lithium-ion batteries, which can be the potential electrode material for supercapacitor application.

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Section: Results and Discussionsupporting

confidence: 55%

Section: ■ Experimental Sectionmentioning

confidence: 99%

Magnetic Electrodeposition of the Hierarchical Cobalt Oxide Nanostructure from Spent Lithium-Ion Batteries: Its Application as a Supercapacitor Electrode

et al. 2018

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“…Cobalt–nickel alloys are interesting materials due to their excellent mechanical properties like hardness and wear resistance , corrosion resistance , super‐hydrophobicity and self‐cleaning ability as well as magnetic properties . Li et al.…”

Section: Introductionmentioning

confidence: 99%

Cobalt–nickel material libraries obtained from electrodeposition using citrate or glycine as additives

Grill

Pötzelberger

Kollender

et al. 2016

Physica Status Solidi (a)

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Fabrication of cobalt-nickel material libraries was performed by electrodeposition in a modified 3D-printed Hull cell using sulfate-based electrolyte baths containing trisodium citrate or glycine as additives. A transition from anomalous to normal co-deposition behavior was observed for different overall applied current densities. Scanning electron microscopy (SEM) images showed needle-shaped crystallites on the sample obtained from citrate solution and a nodular surface morphology for the material library from glycine solution. Non-enzymatic glucose sensing was carried out by flow-type scanning droplet cell microscopy (FT-SDCM) to investigate the electrocatalytic activity for glucose oxidation.Cobalt-nickel material library fabricated by electrodeposition in the presence of trisodium citrate or glycine as additives using a modified 3D-printed Hull cell.

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“…Uygulanan potansiyel değeri negatif yönde -0.77 V'a ulaştığında katodik yönde akım geçişi başladı ve altlık üzerinde depolanma başladı. Şekil 1(a)'da görüldüğü gibi depolanma ve çözünme potansiyelleri arasında meydana gelen farktan dolayı katodik ve anodik akımlar arasında bir çaprazlanma (crossover) oluşur [41,42]. Meydana gelen bu çaprazlanma elektrot üzerinde oluşan çekirdeklenmeyi işaret eder [43].…”

Section: Coni Alaşımların Elektrodepolanması Ve CV Analizleri (Electrodeposition Of the Coni Alloys And Cv Analysis)unclassified

Elektrodepolama ile Üretilen CoNi Alaşım İnce Film Kaplamaların Yapısal ve Manyetik Özellikleri Üzerine Ek Katkı Maddelerinin Etkisi

Özdemir

2019

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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In this study; CoNi alloy thin film coatings were produced by electrodeposition method without additives and using additional additives (organic coumarin and thiourea). The structural and magnetic properties of the produced thin films were investigated. When coumarin was added to the bath composition, it was determined that cobalt in the film content decreased from 67.94% to 43.82%, when it was added to thiourea, it decreased to 34.33% and both films showed amorphous properties. Magnetization measurements were performed and hysteresis curves were obtained. Figure A. Hysteresis loops obtained from magnetic measurements of CoNi alloy thin films, and SEM images Purpose: In this study; It was aimed to produce CoNi alloy thin films by using coumarin and thiourea as an additive in the electrolyte and to investigate the structural and magnetic properties. The effects of additives on the amount of substance deposited in the thin film, crystal structure and magnetic properties (coercivity, saturation magnetization and permanent magnetization) were investigated. Theory and Methods: CoNi alloy thin films were produced by electrodeposition method. A potentiostat with constant direct current and voltage control as a power source was used in the setting. Platinum wire as the opposite electrode saturated calomel electrode (SCE) as the reference electrode and aluminum substrate as the working electrode were used. The structural and magnetic properties of the produced films were investigated by CV, ICP, XRD, SEM and VSM analyzes. Results: CoNi alloy thin films were successfully deposited on aluminum substrates. XRD measurements and SEM images obtained from thin films were analyzed. Thin films deposited with the additive of organic thiourea and coumarin did not crystallize and showed amorphous properties. It was confirmed by hysteresis loops that all three thin-film coatings produced exhibited ferromagnetic material behavior. It was seen that the additives had a significant effect on the amount of material in the alloy film, crystal structure, and magnetic properties. Conclusion: Organic coumarin and thiourea additives were found to significantly change the amount of cobalt and nickel in the deposited thin-film content. The amount of cobalt and nickel material changes the crystal structure, grain size and magneto-crystal anisotropy of the thin film. By controlling these changes, it was understood that the desired soft and hard magnetic materials could be produced.

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Effect of the low magnetic field on the electrodeposition of CoxNi100−x alloys

Cited by 22 publications

References 34 publications

Magnetic Electrodeposition of the Hierarchical Cobalt Oxide Nanostructure from Spent Lithium-Ion Batteries: Its Application as a Supercapacitor Electrode

Magnetic Electrodeposition of the Hierarchical Cobalt Oxide Nanostructure from Spent Lithium-Ion Batteries: Its Application as a Supercapacitor Electrode

Cobalt–nickel material libraries obtained from electrodeposition using citrate or glycine as additives

Elektrodepolama ile Üretilen CoNi Alaşım İnce Film Kaplamaların Yapısal ve Manyetik Özellikleri Üzerine Ek Katkı Maddelerinin Etkisi

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