Influence of constant magnetic field on electrodeposition of metals, alloys, conductive polymers, and organic reactions

Abstract

The paper presents and summarizes some research on constant magnetic field effects in chemistry. Metals and alloys electrodeposited under constant magnetic field have greater thickness and smoother surface with finest grains. Metallic materials deposited under the influence of uniform magnetic field may have stronger corrosion resistance, than those obtained without the presence of magnetic field. Constant magnetic field also causes an increase of the electropolymerization rate and yield of some organic reactions. Our research also shows that the presence of constant magnetic field affects the electrodeposition process of alloys and their morphology to a great extent. The effects of magnetic field on metals, alloys, composites, polymers and other materials are due to the Lorentz force and the magnetohydrodynamic effect. It is possible that the further development of magnetoelectrodeposition will allow for using the constant magnetic field to improve the properties of metal coatings, alloys, polymers, and other materials in the industry.

Use of magnetic fields in electrochemistry: A selected review

“…Many practically-interesting results were obtained in various domains, e.g. proton exchange membrane fuel cells (PEMFC) [6] [7], electrodeposition [8], lab-on-chips [9] or enantioselectivity [10]. Whether the magnetic field is alternating (AMF) or static (SMF), and applied parallel (B//) or perpendicular (B┴) to the electrode surface, several effects (forces) can be triggered, such as Lorentz and Kelvin forces [11,12].…”

Magnetically active lithium-ion batteries towards battery performance improvement

“…MFs have been found to influence several anodic process, such as polymerization ( Kołodziejczyk et al., 2018 ), oxidation at electroactive self-assembled monolayers, corrosion control and electropolishing, improvement of surface finish of electropolished, biocompatible metallic alloys. They have even been found to be enhanced by more than 25% of the performance of nickel metal hydride batteries ( O'Brien, 2019 ).…”

Electrochemical deposition of cobalt-nickel coatings in a constant magnetic field

“…Development of functional metallic and metal alloy coatings with the specific mechanical, electrical, and magnetic properties is one of the main directions of research in electrochemistry (Kołodziejczyk et al, 2018;Louki et al 2021;Mieszkowska et al, 2021;Mishra et al, 2020;Shapouri et al 2021;Soegijono et al, 2020). Among them, Co-Ni alloys coatings are of special interest as they display such favorable features as high coercive forces, very low residual stresses and high surface abrasion resistance (Sinha et al, 1990).…”