Role of convection in thin-layer electrodeposition

Huth, John M.; Swinney, Harry L.; McCormick, W. D.; Kuhn, Alexander; Argoul, Françoise

doi:10.1103/physreve.51.3444

Cited by 163 publications

(145 citation statements)

References 35 publications

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“…A similar agreement with theory was found for measurements performed before the onset of dendritic growth. On the other hand, in experiments performed in horizontal cells [4,[7][8][9][10], the concentration variations were markedly different.…”

Section: Copper Electrodepositionmentioning

confidence: 97%

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Electrodeposition of metals in microgravity conditions

Nishikawa

Fukunaka

Chassaing³

et al. 2013

Electrochimica Acta

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Abstract. Metal electrodeposition may introduce various morphological variations depending on the electrolytic conditions including cell configurations. For liquid electrolytes, a precise study of these deposits may be complicated by convective motion due to buoyancy. Zero-gravity (0-G) condition provided by drop shaft or parabolic flight gives a straightforward mean to avoid this effect: we present here 0-G electrodeposition experiments, which we compare to ground experiments (1-G). Two electrochemical systems were studied by laser interferometry, allowing to measure the concentration variations in the electrolyte: copper deposition from copper sulfate aqueous solution and lithium deposition from an ionic liquid containing LiTFSI. For copper, concentration variations were in good agreement with theory. For lithium, an apparent induction time was observed for the concentration evolution at 1-G: due to this induction time and to the low diffusion coefficient in ionic liquid, the concentration variations were hardly measurable in the parabolic flight 0-G periods of 20 seconds.

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Section: Copper Electrodepositionmentioning

confidence: 97%

“…This effect is due to the electrolyte stratification near both electrodes: it has been extensively studied in the recent literature, both theoretically [4][5][6] and experimentally [7][8][9][10][11]. Convective motion mixes the electrolyte and tends to homogenize the concentration.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of metals in microgravity conditions

Nishikawa

Fukunaka

Chassaing³

et al. 2013

Electrochimica Acta

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“…Gravity-induced currents are well documented [19][20][21] in horizontal ECD cells due to the density contrast between the depleted solution near the cathode and the bulk. Obviously, this effect can be largely suppressed by turning the ECD cell into a vertical configuration with the cathode facing downwards.…”

Section: Fingerlike Aggregates In Thin-layer Electrodepositionmentioning

confidence: 99%

“…Specifically, our thin-layer experimental cell, with thickness around 100 mm, is filled with a copper salt (typically 5 3 10 22 M CuSO 4 ) containing a small amount of an alkaline salt with the same anion (normally Na 2 SO 4 ) at concentrations comprised between 10 23 M and 10 22 M. After some induction time and under constant and moderately high applied potentials, commonly between 10 and 30 V, well-formed fingers such as those shown in Fig. 1, emerge and propagate steadily into the aqueous solution at velocities comprised between 10 and 30 ms 21 , depending on the applied potential. Both the fine texture and the dull reddish color of these deposits are markedly different from the bright red, tip-splitting structures obtained from analogous ECD experiments with pure CuSO 4 solutions.…”

Section: Fingerlike Aggregates In Thin-layer Electrodepositionmentioning

confidence: 99%

“…This would explain the prevalence of cuprous oxide in the deposit and suggests that the dominant electroaggregating process, concurrent with Cu 21 discharge, is the reduction of copper hydroxylated species Cu m ͑OH͒ n ͑2m2n͒1 . These poorly soluble intermediates [22] (hydrogel precipitate) accumulate within a VOLUME 76, NUMBER 21 boundary layer, clearly shown in Fig. 5, separating the depleted solution, embedding the growing deposit, from the bulk.…”

Section: Fingerlike Aggregates In Thin-layer Electrodepositionmentioning

confidence: 99%

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Fingerlike Aggregates in Thin-Layer Electrodeposition

López-Salvans¹,

Trigueros²,

Vallmitjana³

et al. 1996

Phys. Rev. Lett.

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Electrodeposition experiments conducted in a thin-layer horizontal cell containing a nonbinary aqueous electrolyte prepared with cupric sulfate and sodium sulfate gave rise to fingerlike deposits, a novel and unexpected growth mode in this context. Both the leading instability from which fingers emerge and some distinctive features of their steady evolution are interpreted in terms of a simple model based on the existing theory of fingering in fluids. [S0031-9007(96)

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Rationalized Electroepitaxy toward Scalable Single‐Crystal Zn Anodes

Chen

Sun

et al. 2023

Advanced Materials

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Electroepitaxy is recognized as an effective approach to prepare metal electrodes with nearly complete reversibility. Nevertheless, large‐scale manipulation is still not attainable owing to complicated interfacial chemistry. Here, the feasibility of extending Zn electroepitaxy toward the bulk phase over a mass‐produced mono‐oriented Cu(111) foil is demonstrated. Interfacial Cu–Zn alloy and turbulent electroosmosis are circumvented by adopting a potentiostatic electrodeposition protocol. The as‐prepared Zn single‐crystalline anode enables stable cycling of symmetric cells at a stringent current density of 50.0 mA cm−2. The assembled full cell further sustaines a capacity retention of 95.7% at 5.0 A g−1 for 1500 cycles, accompanied by a controllably low N/P ratio of 7.5. In addition to Zn, Ni electroepitaxy can be realized by using the same approach. This study may inspire rational exploration of the design of high‐end metal electrodes.

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Role of convection in thin-layer electrodeposition

Cited by 163 publications

References 35 publications

Electrodeposition of metals in microgravity conditions

Electrodeposition of metals in microgravity conditions

Fingerlike Aggregates in Thin-Layer Electrodeposition

Rationalized Electroepitaxy toward Scalable Single‐Crystal Zn Anodes

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