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Shabouei M, Nakshatrala KB. On Numerical Stabilization in Modeling Double-Diffusive Viscous Fingering. Transp Porous Media 2020. [DOI: 10.1007/s11242-020-01379-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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2
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Tanikoshi T, Otomo R, Harada S. Quantitative evaluation of mass transfer near the edge of porous media by absorption photometry. AIChE J 2016. [DOI: 10.1002/aic.15397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Taiki Tanikoshi
- Faculty of Engineering; Hokkaido University; Sapporo 0608628 Japan
| | - Ryoko Otomo
- Faculty of Engineering Science; Kansai University; Suita 5648680 Japan
| | - Shusaku Harada
- Faculty of Engineering; Hokkaido University; Sapporo 0608628 Japan
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Karatay E, Andersen MB, Wessling M, Mani A. Coupling between Buoyancy Forces and Electroconvective Instability near Ion-Selective Surfaces. PHYSICAL REVIEW LETTERS 2016; 116:194501. [PMID: 27232024 DOI: 10.1103/physrevlett.116.194501] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Indexed: 06/05/2023]
Abstract
Recent investigations have revealed that ion transport from aqueous electrolytes to ion-selective surfaces is subject to electroconvective instability that stems from coupling of hydrodynamics with electrostatic forces. These systems inherently involve fluid density variation set by salinity gradients. However, the coupling between the buoyancy effects and electroconvective instability has not yet been investigated although a wide range of electrochemical systems are naturally prone to these interplaying effects. In this study we thoroughly examine the interplay of gravitational convection and chaotic electroconvection. Our results reveal that buoyant forces can significantly influence the transport rates, otherwise set by electroconvection, when the Rayleigh number Ra of the system exceeds a value Ra∼1000. We show that buoyancy forces can significantly alter the flow patterns in these systems. When the buoyancy acts in the stabilizing direction, it limits the extent of penetration of electroconvection, but without eliminating it. When the buoyancy destabilizes the flow, it alters the electroconvective patterns by introducing upward and downward fingers of respectively light and heavy fluids.
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Affiliation(s)
- Elif Karatay
- Department of Mechanical Engineering, Stanford University and Center for Turbulence Research, Stanford University, Stanford, California 94305, USA
| | - Mathias Bækbo Andersen
- Department of Mechanical Engineering, Stanford University and Center for Turbulence Research, Stanford University, Stanford, California 94305, USA
| | - Matthias Wessling
- RWTH Aachen University, Aachener Verfahrenstechnik, 52056 Aachen, Germany
| | - Ali Mani
- Department of Mechanical Engineering, Stanford University and Center for Turbulence Research, Stanford University, Stanford, California 94305, USA
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Mocskos EE, González G, Molina FV, Marshall G. Numerical and experimental studies of Electrochemical Deposition quasi-stable growth. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2010.12.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Yu G, Wang J, Liu D, Liu H. The formation of patterns of electrochemical deposits in an ultra-thin layer of CuSO4 solution. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2007.08.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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González G, Soba A, Marshall G, Molina F, Rosso M. Dense branched morphology in electrochemical deposition in a thin cell vertically oriented. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2007.02.069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Devos O, Gabrielli C, Beitone L, Mace C, Ostermann E, Perrot H. Growth of electrolytic copper dendrites. I: Current transients and optical observation. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2007.03.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Marshall G, Mocskos E, González G, Dengra S, Molina F, Iemmi C. Stable, quasi-stable and unstable physicochemical hydrodynamic flows in thin-layer cell electrodeposition. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2005.08.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Wang M, Feng Y, Yu GW, Gao WT, Zhong S, Peng RW, Ming NB. Self-organization of nanostructured copper filament array by electrochemical deposition. SURF INTERFACE ANAL 2004. [DOI: 10.1002/sia.1689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Zhong S, Wang Y, Wang M, Zhang MZ, Yin XB, Peng RW, Ming NB. Formation of nanostructured copper filaments in electrochemical deposition. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2003; 67:061601. [PMID: 16241233 DOI: 10.1103/physreve.67.061601] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2002] [Revised: 02/24/2003] [Indexed: 05/04/2023]
Abstract
In this paper, we report in detail the studies of a different self-organized copper electrodeposition carried out in an ultrathin layer of CuSO4 electrolyte. On a macroscopic scale, the morphology of the electrodeposit is fingerlike. Microscopically, each fingering branch consists of long, straight copper filaments with periodic corrugated nanostructures. Branching rate of the electrodeposit is significantly decreased, compared with the patterns grown in conventional systems. Detailed information of the growth environment in the ultrathin electrodeposition system is provided, the formation mechanism of the periodic nanostructures on the deposit filaments is explored, and the origin of the significant descent of branching rate of the electrodeposit is discussed.
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Affiliation(s)
- Sheng Zhong
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, China
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Saliba R, Mingotaud C, Argoul F, Ravaine S. Ramified gold deposits at the gas∣liquid interface. J Electroanal Chem (Lausanne) 2003. [DOI: 10.1016/s0022-0728(03)00061-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Ravaine S, Saliba R, Mingotaud C, Argoul F. Electroless formation of gold deposits under positively charged surfactant monolayers. Colloids Surf A Physicochem Eng Asp 2002. [DOI: 10.1016/s0927-7757(01)00986-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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De Wit A. Fingering of chemical fronts in porous media. PHYSICAL REVIEW LETTERS 2001; 87:054502. [PMID: 11497775 DOI: 10.1103/physrevlett.87.054502] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2001] [Indexed: 05/23/2023]
Abstract
The influence of chemical reactions on the hydrodynamical fingering instability is analyzed for miscible systems in porous media. Using a realistic reaction scheme, it is shown that the stability of chemical fronts towards density fingering crucially depends on the width and the speed of the front which are functions of chemical parameters. The major difference between the pure and chemically driven fingering is that, in the presence of chemical reactions, the dispersion curves do not vary in time which has important practical experimental consequences. Good agreement with recent experimental data is found.
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Affiliation(s)
- A De Wit
- Service de Chimie Physique and Center for Nonlinear Phenomena and Complex Systems, Université Libre de Bruxelles, CP 231, Campus Plaine, 1050 Brussels, Belgium
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Wang M, Zhong S, Yin XB, Zhu JM, Peng RW, Wang Y, Zhang KQ, Ming NB. Nanostructured copper filaments in electrochemical deposition. PHYSICAL REVIEW LETTERS 2001; 86:3827-3830. [PMID: 11329334 DOI: 10.1103/physrevlett.86.3827] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2000] [Indexed: 05/23/2023]
Abstract
In this Letter we report a novel self-organized copper electrodeposition in an ultrathin layer of CuSO4 electrolyte. The macroscopic fingering branches of the deposit consist of long copper filaments covered with periodic corrugated nanostructures. The mechanism of the nanostructure formation is explored and the origin of the significant descent of the branching rate in electrodeposition is discussed. We suggest that this growth phenomenon provides deeper insights into the role of diffusion and migration on pattern formation in electrodeposition.
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Affiliation(s)
- M Wang
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China.
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Zhang KQ, Wang M, Zhong S, Chen GX, Ming NB. Pattern selection induced by electroconvection in the electrodeposition of iron. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 2000; 61:5512-5519. [PMID: 11031604 DOI: 10.1103/physreve.61.5512] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/1999] [Revised: 10/25/1999] [Indexed: 05/23/2023]
Abstract
The morphology of iron electrodeposit is shown to relate closely to the pH of the electrolyte solution. Macroscopically, depending on the strength of the interbranch convection, which is associated with the concentration of H3O+ in the electrolyte, the deposit morphology varies from treelike pattern to meshlike pattern and dense-branching morphology. Microscopically the deposit is ramified and dense-branching at lower concentration of H3O+, while it becomes relatively smooth and stringy at higher H3O+ concentration. The symmetry of the convective vortices on the two sides of the growing tip is observed to decide the growth behavior of the tip. We suggest that H3O+ influences the pattern formation and pattern selection in the electrodeposition of iron from FeSO4 solution by either initiating interbranch convection or changing the effective interfacial energy of the deposit and the electrolyte.
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Affiliation(s)
- KQ Zhang
- National Laboratory of Solid State Microstructures, Nanjing University, China
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Electrodeposition of two-dimensional silver films under dihexadecyl phosphate monolayers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 1999. [DOI: 10.1016/s0928-4931(99)00036-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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de Bruyn JR. Early stages of ramified growth in quasi-two-dimensional electrochemical deposition. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1996; 53:R5561-R5564. [PMID: 9965037 DOI: 10.1103/physreve.53.r5561] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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19
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A quantitative study of gravity-induced convection in two-dimensional parallel electrodeposition cells. J Electroanal Chem (Lausanne) 1996. [DOI: 10.1016/0022-0728(95)04477-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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