Holographic interferometric microscopy for measuring Cu2+ concentration profile during Cu electrodeposition in a magnetic field

Nishikawa, Kei; Saito, Takaki; Matsushima, Hisayoshi; Ueda, Mikito

doi:10.1016/j.electacta.2018.12.025

Cited by 25 publications

(20 citation statements)

References 39 publications

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“…The action of cutting magnetic induction lines by motivated charged particles can produce a Lorentz force, which induces a solution flow called the magnetohydrodynamic (MHD) flow and a tiny eddy called the micro-MHD flow . The former flow is pretty distinct under a SMF, affecting the deposition distribution strikingly . The micro-MHD flow can modulate the 2D and 3D nucleation by coupling with asymmetrical and symmetrical fluctuations.…”

Section: Introductionmentioning

confidence: 99%

Strong Magnetic-Field-Engineered Porous Template for Fabricating Hierarchical Porous Ni–Co–Zn–P Nanoplate Arrays as Battery-Type Electrodes of Advanced All-Solid-State Supercapacitors

Liu

Zhang

et al. 2022

ACS Appl. Mater. Interfaces

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The sluggish charge transport kinetics that exist in the energy storage process of all-solid-state supercapacitors (ASSSCs) can be improved by designing open hierarchical porous structures for binder-free electrodes. Herein, a template-directed strategy is developed to fabricate open hierarchical porous Ni–Co–Zn–P nanoplate arrays (NCZP6T) through phosphating the electrodeposited NiCo–LDH nanosheets loaded on a template. At first, porous conductive NiZn alloy nanoplate arrays are rationally devised as the template by a strong magnetic field (SMF)-assisted electrodeposition. The Lorentz force caused by coupling the SMF with the electrical current induces a magnetohydrodynamic (MHD) flow (including the micro-MHD flow), which homogenizes the deposition coating, tunes the nucleation and growth of the NiZn alloy, and produces pores in the nanoplates. The open hierarchical porous structure offers a larger specific surface area and pore volume for accelerating charge transport and gives a synergistic effect between the inner porous conductive NiZn array template and the outer electrochemical active phosphides for high-performance hybrid ASSSCs. Accordingly, the battery-type electrode of NCZP6T shows a much higher specific capacitance of 3.81 F cm–2 at 1 mA cm–2, enhanced rate capability, and remarkable cycling stability at progressively varying current densities. Finally, the NCZP6T//FeS ASSSC delivers a high energy density of 77 μW h cm–2 at a large power density of 12 mW cm–2, outperforming most state-of-the-art supercapacitors.

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Section: Introductionmentioning

confidence: 99%

Strong Magnetic-Field-Engineered Porous Template for Fabricating Hierarchical Porous Ni–Co–Zn–P Nanoplate Arrays as Battery-Type Electrodes of Advanced All-Solid-State Supercapacitors

Liu

Zhang

et al. 2022

ACS Appl. Mater. Interfaces

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“…Figure 1a,b)[23][24]. Many related effects were observed during electrodeposition, depending on the applied magnetic field direction on the cathode surface.…”

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confidence: 99%

Use of magnetic fields in electrochemistry: A selected review

Gatard

Deseure

Chatenet

2020

Current Opinion in Electrochemistry

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Electrochemical reactions are usually thermally-activated and submitted to masstransfer effects. Although classically, enhanced kinetics of an electrochemical reaction is obtained by heating the cell and feeding the reactant by forced convection, other means can be used to improve mass-and charge-transfer. This paper shortly reviews the effects of magnetic fields in electrochemistry. Using a static or an alternating magnetic field enables to enhance electrodeposition and electrocatalysis, via improved gas and species convection, electrochemical kinetics and whole reaction efficiency. Such enhancement can mainly be related to Lorentz and Kelvin forces, magneto-hydrodynamics (MHD), chiral-induced spin selectivity (CISS) and hyperthermia, these effects being described herein.

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“…, which is conducive to improving the structure, morphology, and properties of the deposits. 27–30 In previous research studies, flat deposits of iron and cobalt were obtained by applying a magnetic field during the electrodeposition process, 31,32 which proved the positive role of the magnetic field in promoting uniform metal deposition. The magnetic field can be applied directly with the advantages of being pollution free, simple, and non-contact controlled.…”

Section: Introductionmentioning

confidence: 85%

“…25,26 The MHD effect in the electrodeposition process leads to compounding impacts on the mass transfer, ion movement, electrochemical reactions, metal crystal nucleation, growth, grain orientation, etc., which is conducive to improving the structure, morphology, and properties of the deposits. [27][28][29][30] In previous research studies, at deposits of iron and cobalt were obtained by applying a magnetic eld during the electrodeposition process, 31,32 which proved the positive role of the magnetic eld in promoting uniform metal deposition. The magnetic eld can be applied directly with the advantages of being pollution free, simple, and non-contact controlled.…”

Section: Introductionmentioning

confidence: 87%

The magnetohydrodynamic effect enables a dendrite-free Zn anode in alkaline electrolytes

Liang

Chen

et al. 2022

J. Mater. Chem. A

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Holographic interferometric microscopy for measuring Cu2+ concentration profile during Cu electrodeposition in a magnetic field

Cited by 25 publications

References 39 publications

Strong Magnetic-Field-Engineered Porous Template for Fabricating Hierarchical Porous Ni–Co–Zn–P Nanoplate Arrays as Battery-Type Electrodes of Advanced All-Solid-State Supercapacitors

Strong Magnetic-Field-Engineered Porous Template for Fabricating Hierarchical Porous Ni–Co–Zn–P Nanoplate Arrays as Battery-Type Electrodes of Advanced All-Solid-State Supercapacitors

Use of magnetic fields in electrochemistry: A selected review

The magnetohydrodynamic effect enables a dendrite-free Zn anode in alkaline electrolytes

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