Influence of Velocity on Corrosion of Copper in Alkaline Chloride Solutions

Diem, C. B.; Orazem, Mark E.

doi:10.5006/1.3294336

Cited by 15 publications

(3 citation statements)

References 17 publications

(21 reference statements)

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“…In the case of the corrosion of copper and its alloys, much of the research has been conducted under hydrodynamic conditions using other solutions, such as seawater and drinking water. [12][13][14][15] The purpose of this work was to study the corrosion behavior of copper pipes similar to those used as heat exchangers in absorption machines under a variety of hydrodynamic and mass-transport regimes using electrochemical techniques. The effect of exposure time on the corrosion current density (i corr ) and the corrosion potential (E corr ) in laminar and turbulent flow was also investigated.…”

Section: Corrosion-october 2001mentioning

confidence: 99%

Effect of Fluid Velocity and Exposure Time on Copper Corrosion in a Concentrated Lithium Bromide Solution

Pérez-Herranz¹,

Montañés²,

Garcı́a-Antón³

et al. 2001

CORROSION

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A study was carried out to investigate the effect of hydrodynamic variables and exposure time on the corrosion of copper in a 4.6-M lithium bromide (LiBr) solution at room temperature using electrochemical techniques. The corrosion rate, measured in terms of the corrosion current density (i corr ), increased with the Reynolds number following a potential relation typical of processes controlled by the mass transport of the species formed in the dissolution process through the corrosion product film and the diffusion boundary layer, the effect of erosion caused by the particles of the corrosion product being negligible. In the range of the fluid velocities investigated, the corrosion potential (E corr ) shifted to more noble values, and the passivating current density decreased with the increase in fluid velocity as a result of the stabilization of the passive film formed. Over the exposure period, E corr and i corr increased sharply, reaching a maximum on the first days of exposition. After this time, E corr and i corr decreased, exhibiting slight fluctuations around a mean value.

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Section: Corrosion-october 2001mentioning

confidence: 99%

Effect of Fluid Velocity and Exposure Time on Copper Corrosion in a Concentrated Lithium Bromide Solution

Pérez-Herranz¹,

Montañés²,

Garcı́a-Antón³

et al. 2001

CORROSION

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“…Contohnya seperti sistem yang padat dan cairan elektrolit (Bousse and Bergveld 1983;Robertson, Tribollet, and Deslouis 1988;Pollard and Comte 1989), kaca (Hernández et al 2014;Alsyadi et al 2013;Lanfredi et al 2002) dan polimer (Rubinson and Kayinamura 2009;Stassi, Sacco, and Canavese 2014;Scrosati, Croce, and Persi 2000). Teknik ini telah dilakukan secara luas pula dalam penelitian terhadap korosi (Carnot et al 2003;Diem and Orazem 1994) atau elektrokimia, dan sel fotoelektrokimia seperti fuel sel (Roy and Orazem 2007;Costamagna, Costa, and Antonucci 1998), baterai (Cui and Luo 2000;Sun, Kim, and Choi 1999;Lamberti et al 2015), dan perangkat surya (Kumar, Singh, and Chilana 2009;Halme et al 2010).…”

Section: Pendahuluanunclassified

Sebuah Review: Spektroskopi Impedansi Elektrokimia Dan Aplikasinya Dalam Baterai Lithium-Ion

Mahendra

Supardi

2021

IFI

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Abstrak Dengan meningkatnya kebutuhan bahan penyimpan energi, baterai rechargeable lithium ion menjadi obyek yang banyak dipelajari. Banyak metoda yang digunakan untuk menyelidiki karakteristik elektrokimia dari baterai, salah satunya adalah Electrochemical Impedance Spectroscopy (EIS). Dengan EIS, informasi dari hubungan state of charge pada siklus tertentu baterai dengan resistansi elektrolit, resistansi film permukaan dan resistansi transfer muatan didapatkan dengan menggunakan rangkaian ekivalen yang sesuai dengan plot Nyquist. Pada artikel ini, perbandingan antara hasil karakterisasi EIS katoda LiCoO2 dan LiNi1/3Co1/3Mn1/3O2 dalam baterai lithium ion juga dipaparkan berdasarkan laporan dari penelitian yang pernah dilakukan para peneliti sebelumnya. Telah dilaporkan bahwa nilai DLi+ dari LiCoO2 lebih besar daripada LiNi1/3Co1/3Mn1/3O2, dan nilai j0 dari LiNi1/3Co1/3Mn1/3O2 lebih besar dari pada LiCoO2. Kata Kunci: Electrochemical Impedance Spectroscopy (EIS), Plot Nyquist, Baterai Lithium Ion, State of Charge Abstract With increasing need for energy storage materials, rechargeable lithium ion battery become an object that is much studied. There are many methods that used to investigate electrochemical characteristic of battery, one of them is Electrochemical Impedance Spectroscopy (EIS). With the EIS, informations about relation between state of charge at some certain cycle of battery with electrolyte resistance, surface film resistance, and charge transfer resistance are obtained with modeling equivalent circuit according to the Nyquist plots. In tis article, a comparison between the results of EIS characterization of cathode LiCoO2 and LiNi1/3Co1/3Mn1/3O2 in lithium ion battery is presented based on report studies that have been conducted by previous researcher. It has been reported that DLi+ value of cathode LiCoO2 is greater than DLi+ value of cathode LiNi1/3Co1/3Mn1/3O2, and j0 value of cathode LiNi1/3Co1/3Mn1/3O2 is greater than j0 value of cathode LiCoO2. Keywords: Electrochemical Impedance Spectroscopy (EIS), Nyquist Plot, Lithium Ion Battery, State of Charge

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“…Nevertheless, there may be some practical reasons in specific applications where using a RDE can be a real drawback: For instance, coupling of mass transfer measurements in codeposition of metal and inert particles with a Quartz Crystal Microbalance for which the system must be at rest as shown by Arkam et al (1994), or when using optical techniques as done by Diem and Orazem (1994) with ellipsometric set-up for corrosion studies. In the present work, the RDE has both the disadvantages that three rotating contacts to pick-up the three currents are necessary and that a correct positioning of the three-segment probe with respect to the mean flow direction for calibration would be cumbersome and therefore, the SIJ can be an interesting substitute.…”

Section: Introductionmentioning

confidence: 99%

Flow measurement in an impinging jet cell with three-segment microelectrocles

Baleras¹,

Bonet²,

Deslouis³

et al. 1996

Experiments in Fluids

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Three-dimensional flow close to the stagnation point of an impinging jet cell was studied by means of three-segment electrodiffusion probes. The total current and the directional characteristics providing the wall velocity gradient and the flow direction respectively were measured at different distances from the stagnation point. The linear dependence of the wall velocity gradient on this distance was confirmed in the stagnation zone. The normal velocity component was evaluated from the flatness of the directional characteristics. The values of the normal velocity component were rather higher than those corresponding to the linear change of the velocity gradient and the dimensionless ratio of the probe radius to distance. The deviation appearing on the normal velocity component was explained by geometrical imperfections of the probes due to the technology of fabrication.

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Influence of Velocity on Corrosion of Copper in Alkaline Chloride Solutions

Cited by 15 publications

References 17 publications

Effect of Fluid Velocity and Exposure Time on Copper Corrosion in a Concentrated Lithium Bromide Solution

Effect of Fluid Velocity and Exposure Time on Copper Corrosion in a Concentrated Lithium Bromide Solution

Sebuah Review: Spektroskopi Impedansi Elektrokimia Dan Aplikasinya Dalam Baterai Lithium-Ion

Flow measurement in an impinging jet cell with three-segment microelectrocles

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