Effects of an applied magnetic field on the dissolution and passivation of iron in sulphuric acid

Lu, Zhanpeng; Huang, Delun; Yang, Wulin; Congleton, J.

doi:10.1016/s0010-938x(03)00045-3

Cited by 66 publications

(45 citation statements)

References 23 publications

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“…Hence, the oxidation products are expected to relocate into a ring-like shape on the glassy alloy matrix. Under a magnetic field, the covered region Rc is more smooth than in the absence of a magnetic field, indicating an uneven variation under an applied magnetic field; this behavior has also been reported by Lu et al [23]. The variation of regions Rb and Rc under a magnetic field are likely responsible for their contributions to the change in current density.…”

Section: Effect Of Magnetic Field On the Anodic Polarization Of Fe 78supporting

confidence: 77%

“…4 shows the microstructure of samples after electrochemical testing in 0.4 mol/L NaOH solution. Two regions are observed on the corroded alloy surface: a severely corroded region and a less-corroded region, i.e., a bared region (Rb) and a covered region (Rc), respectively, which are similar to the corroded surface of iron in H 2 SO 4 solutions [23]. Some small white corroded particles are present in the covered region in the absence of the magnetic field, as shown in Figs.…”

Section: Methodsmentioning

confidence: 74%

“…Previous research has been conducted on the effects of magnetic fields on the corrosion behavior of glassy alloys [23,34]. In general, the mass transport rate at the metal/solution interface is enhanced by the application of a magnetic field via the MHD effect.…”

Section: Effect Of Magnetic Field On the Anodic Polarization Of Fe 78mentioning

confidence: 99%

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Non-monotonic influence of a magnetic field on the electrochemical behavior of Fe78Si9B13 glassy alloy in NaOH and NaCl solutions

Zhang

Li²,

Pang³

et al. 2014

Int J Miner Metall Mater

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Abstract:The corrosion behavior and microstructure of Fe 78 Si 9 B 13 glassy alloy in NaOH and NaCl solutions under a 0.02-T magnetic field were investigated through electrochemical testing and scanning electron microscopy (SEM). The current-density prepeak (PP) in the anodic polarization curves in low-concentration NaOH solutions (classified as type I) tends to disappear when the NaOH concentration is increased to 0.4 mol/L and the magnetic field is applied. Under the magnetic field, the height of the second current-density peak is increased in low-concentration NaOH solutions (type I) but decreased in high-concentration NaOH solutions (type II). The non-monotonic effect of the magnetic field was similarly observed in the case of polarization curves of samples measured in NaCl solutions. Ring-like corroded patterns and round pits are easily formed under the magnetic field in NaOH and NaCl solutions. These experimental results were discussed in terms of the magnetohydrodynamic (MHD) effect.

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Section: Effect Of Magnetic Field On the Anodic Polarization Of Fe 78supporting

confidence: 77%

Section: Methodsmentioning

confidence: 74%

See 1 more Smart Citation

Non-monotonic influence of a magnetic field on the electrochemical behavior of Fe78Si9B13 glassy alloy in NaOH and NaCl solutions

Zhang

Li²,

Pang³

et al. 2014

Int J Miner Metall Mater

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“…Turning to effects of magnetic fields on anodic processes, it is worth mentioning the shifts of rest potential [38] and enhanced corrosion [39,40] of magnetic and nonmagnetic electrodes. Here again, micro-MHD is influencing mass transport.…”

Section: Anodic Processesmentioning

confidence: 99%

“…During electrochemical etching, the field also shifts the formation of the passive layer towards much higher anodic potentials as it prevents the build-up of corrosion products near the surface. [39,43] Polymerization is another anodic process that has been influenced by magnetic fields. The polymerization rate is enhanced via MHD convection [44] while modifications in polymer texture, open or crystalline, are achieved varying the direction of the field.…”

Section: Anodic Processesmentioning

confidence: 99%

Magnetic fields in electrochemistry: The Lorentz force. A mini-review

Monzón

Coey

2014

Electrochemistry Communications

241

195

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

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Magnetoelectric Coupling for Metal–Air Batteries

Wang

Zuo

et al. 2022

Adv Funct Materials

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Metal–air batteries have become one of the new potential sources of electrochemical energy due to the excellent electrochemical characteristics, environmental friendliness and cheap cost. Whereas, the commercialization of the metal–air batteries is still subject to the sluggish kinetics on air electrode and hydrogen evolution corrosion as well as dendrite growth of metal anode. Recently, the applied magnetic field, as a technology for transferring energy across physical space, receives more attention, can improve the performance of metal–air batteries by promoting mass transfer, accelerating charge transfer and enhancing electrocatalytic ability based on magnetohydrodynamic effect, Kelvin force effect, Hall effect, Spin selectivity effect, Maxwell stress effect and Magnetothermal effect. This review provides the recent progress in the research on the relative mechanism and characteristic of the magnetic field in the metal–air batteries.

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Effects of an applied magnetic field on the dissolution and passivation of iron in sulphuric acid

Cited by 66 publications

References 23 publications

Non-monotonic influence of a magnetic field on the electrochemical behavior of Fe78Si9B13 glassy alloy in NaOH and NaCl solutions

Non-monotonic influence of a magnetic field on the electrochemical behavior of Fe78Si9B13 glassy alloy in NaOH and NaCl solutions

Magnetic fields in electrochemistry: The Lorentz force. A mini-review

Magnetoelectric Coupling for Metal–Air Batteries

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