Voltametry and EQCM study of copper oxidation in acidic solution in presence of chloride ions

Kologo, S.; Eyraud, Marielle; Bonou, Lucien; Vacandio, Florence; Massiani, Y.

doi:10.1016/j.electacta.2006.09.052

Cited by 33 publications

(24 citation statements)

References 26 publications

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“…A number of cycles have been run under the same conditions. Whatever the cycles, the CVs seem to keep the same shape with two peaks [31]: the FePS 3 reduction and oxidation peaks. The comparison of the shapes of the anodic and cathodic peaks on the CV, as a function of acidic solution, shows the influence of the chloride ions on the FePS 3 reduction and oxidation mechanisms.…”

Section: Electrochemical Measurementsmentioning

confidence: 93%

“…They have been applied in many fields such as nonlinear optical materials, magnetic materials, photomagnetic materials, catalytic materials, medical and biomedical materials and cathode materials in the rechargeable batteries [10][11][12][13][14]. The layered materials, especially, FePS 3 , MnPS 3 and MgPS 3 , were investigated for hydrogen storage application and the results were promising [15][16][17]. Physical properties and characterization of such materials were extensively studied [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…MnPS 3 single crystals were grown from a powder mixture of Mn, P and S [1, 2]. Transition metal chalcogenophosphates or layered materials, MPX 3 (M ≡ transition metals; X ≡ S or Se) show fascinating structure, electric and magnetic properties [3][4][5][6]. The structure of these materials is closely related to that of the well-known transition metal dichalcogenide, MX 2 [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Fabrication and Characterization Single Crystal of FePS3 Layered Material

A.A¹,

Madian²,

Ismail³

2015

International Advanced Research Journal in Science, Engineering

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Single crystal sheet of layered material, FePS 3 , grows inside sealed and evacuated silica tube. The FePS 3 forms at 650°C under a controlled heating rate. X-ray diffraction (XRD), Scanning electron microscope (SEM) and transmission electron microscope (TEM) have been used to study the crystal structure and morphology. The XRD pattern exhibits sharp 001 reflections of the single crystal alloy sheet. The prepared samples exhibit high thermal stability with a decomposition temperature of 780 ˚C. The SEM images show smoothness of the single crystal sheets. Corrosion behavior was investigated by using open circuit potential, Tafel polarization and cyclic voltametry in presence of 10% hydrochloric acid. The crystal open circuit potential shifts to the nobler direction. There is a passive region in the anodic branch of the polarization curve. The presence of the passive region reflects high corrosion resistance. This behavior of high corrosion resistance can be rationalized on the basis that single crystals are free from grain boundaries. INTRODUCTIONSingle crystal is the perfect structure of crystalline materials. It is free of grain boundaries. This behavior increases its corrosion resistance. However, there are few methods for preparing bulk single crystals. MnPS 3 single crystals were grown from a powder mixture of Mn, P and S [1, 2]. Transition metal chalcogenophosphates or layered materials, MPX 3 (M ≡ transition metals; X ≡ S or Se) show fascinating structure, electric and magnetic properties [3][4][5][6]. The structure of these materials is closely related to that of the well-known transition metal dichalcogenide, MX 2 [7][8][9]. They have been applied in many fields such as nonlinear optical materials, magnetic materials, photomagnetic materials, catalytic materials, medical and biomedical materials and cathode materials in the rechargeable batteries [10][11][12][13][14]. The layered materials, especially, FePS 3 , MnPS 3 and MgPS 3 , were investigated for hydrogen storage application and the results were promising [15][16][17]. Physical properties and characterization of such materials were extensively studied [18][19][20][21][22][23]. The electrochemical characteristics of the MPS 3 and NiPS 3 as cathodic materials in room temperature lithium batteries were investigated [24]. The theoretical specific capacities of a family of layered compounds MPX 3 (M = Fe, Co, Ni; X = S, Se) involving 1.5, 2, 6 and 9 lithium atoms per MPX 3 molecule have been estimated [25]. The data show that FePS 3 and NiPS 3 are good electroactive materials for primary lithium cells [26]. This work aims at studying growth of single crystal of the FePS 3 layer material under vacuum conditions. The single

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Section: Electrochemical Measurementsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fabrication and Characterization Single Crystal of FePS3 Layered Material

A.A¹,

Madian²,

Ismail³

2015

International Advanced Research Journal in Science, Engineering

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“…As the copper foil covers the whole quartz surface, the electrolyte is only in contact with the electrochemical active surface of the copper foil (0.785 cm 2 ). The copper foil on quartz was calibrated with an electrolyte containing 1 M sulfuric acid (H 2 SO 4 ) (95%-97%) and 0.1 M copper(II) sulfate pentahydrate (CuSO 4 ·5H 2 O) (99.995%, Sigma-Aldrich, Spruce St., St. Louis, USA) [60]. A cylindrical teflon cell [61] and a three electrode setup including a platinum (Pt) as pseudo-reference electrode (RE) and counter electrode (CE) and copper foil on quartz as working electrode (WE) was used.…”

Section: Methodsmentioning

confidence: 99%

Results from a Novel Method for Corrosion Studies of Electroplated Lithium Metal Based on Measurements with an Impedance Scanning Electrochemical Quartz Crystal Microbalance

et al. 2013

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Abstract:A new approach to study the chemical stability of electrodeposited lithium on a copper metal substrate via measurements with a fast impedance scanning electrochemical quartz crystal microbalance is presented. The corrosion of electrochemically deposited lithium was compared in two different electrolytes, based on lithium difluoro(oxalato) borate (LiDFOB) and lithium hexafluorophosphate, both salts being dissolved in solvent blends of ethylene carbonate and diethyl carbonate. For a better understanding of the corrosion mechanisms, scanning electron microscopy images of electrodeposited lithium were also consulted. The results of the EQCM experiments were supported by AC impedance measurements and clearly showed two different corrosion mechanisms caused by the different salts and the formed SEIs. The observed mass decrease of the quartz sensor of the LiDFOB-based electrolyte is not smooth, but rather composed of a series of abrupt mass fluctuations in contrast to that of the lithium hexafluorophosphate-based electrolyte. After each slow decrease of mass a rather fast increase of mass is observed several times. The slow mass decrease can be attributed to a consolidation process of the SEI or to the partial dissolution of the SEI leaving finally lithium metal unprotected so that a fast film formation sets in entailing the observed fast mass increases.

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“…Its electrodeposition and dissolution/corrosion have been studied in acid solution containing chlorides on a gold piezoelectrode EQCM by simultaneous cyclic voltammetry [22,23]. The properties of semiconducting oxides formed on bulk copper have been investigated in alkaline borax solutions using EIS, photocurrent spectroscopy and ellipsometry [24].…”

Section: Introductionmentioning

confidence: 99%

Interaction of BSA protein with copper evaluated by electrochemical impedance spectroscopy and quartz crystal microbalance

Pinto

Soares

Brett

2008

Electrochimica Acta

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The interaction of bovine serum albumin (BSA) protein with copper in phosphate buffer solution has been studied by a combination of electrochemical impedance spectroscopy (EIS) close to the open circuit potential, with simultaneous monitoring by the electrochemical quartz crystal microbalance (EQCM), in order to throw light on BSA adsorption. Copper films were electroplated onto gold quartz crystals and mounted in the EQCM. Experiments were conducted in the presence and absence of dissolved oxygen and of BSA and the results show the influence of O 2 on the protein/metal interaction and also show specific interactions between BSA and copper. The good reproducibility obtained in these experiments suggests future application to other systems and which should lead to a better understanding of the use of such types of protein as corrosion inhibitors.

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Voltametry and EQCM study of copper oxidation in acidic solution in presence of chloride ions

Cited by 33 publications

References 26 publications

Fabrication and Characterization Single Crystal of FePS3 Layered Material

Fabrication and Characterization Single Crystal of FePS3 Layered Material

Results from a Novel Method for Corrosion Studies of Electroplated Lithium Metal Based on Measurements with an Impedance Scanning Electrochemical Quartz Crystal Microbalance

Interaction of BSA protein with copper evaluated by electrochemical impedance spectroscopy and quartz crystal microbalance

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