1
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Bigaj A, Budroni MA, Escala DM, Rongy L. Marangoni- vs. buoyancy-driven flows: competition for spatio-temporal oscillations in A + B → C systems. Phys Chem Chem Phys 2023; 25:11707-11716. [PMID: 37060119 DOI: 10.1039/d3cp00637a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
The emergence of self-organized behaviors such as spatio-temporal oscillations is well-known for complex reactions involving nonlinear chemical or thermal feedback. Recently, it was shown that local oscillations of the chemical species concentration can be induced under isothermal batch conditions for simple bimolecular A + B → C reactions, provided they are actively coupled with hydrodynamics. When two reactants A and B, initially separated in space, react upon diffusive contact, damped spatio-temporal oscillations could develop when the surface tension increases sufficiently in the reaction zone. Additionally, if the density decreases, the coupling of both surface tension- and buoyancy-driven contributions to the flow can further sustain this oscillatory instability. Here, we investigate the opposite case of a reaction inducing a localized decrease in surface tension and an increase in density in the reacting zones. In this case, the competition arising from the two antagonistic flows is needed to create oscillatory dynamics, i.e., no oscillations are observed for pure chemically driven Marangoni flows. We study numerically these scenarios in a 2-dimensional system and show how they are controlled by the following key parameters: (i) ΔM and ΔR governing the surface tension and density variation during the reaction, respectively, (ii) the layer thickness of the system, and (iii) its lateral length. This work is a further step toward inducing and controlling chemical oscillations in simple reactions.
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Affiliation(s)
- Adam Bigaj
- Nonlinear Physical Chemistry Unit, Service de Chimie Physique et Biologie Théorique, Université libre de Bruxelles (ULB), CP 231 - Campus Plaine, 1050 Brussels, Belgium.
| | - Marcello A Budroni
- Department of Chemistry and Pharmacy, University of Sassari, Via Vienna 2, 07100 Sassari, Italy.
| | - Darío Martín Escala
- Nonlinear Physical Chemistry Unit, Service de Chimie Physique et Biologie Théorique, Université libre de Bruxelles (ULB), CP 231 - Campus Plaine, 1050 Brussels, Belgium.
| | - Laurence Rongy
- Nonlinear Physical Chemistry Unit, Service de Chimie Physique et Biologie Théorique, Université libre de Bruxelles (ULB), CP 231 - Campus Plaine, 1050 Brussels, Belgium.
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2
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Diffusion in liquid mixtures. NPJ Microgravity 2023; 9:1. [PMID: 36646718 PMCID: PMC9842720 DOI: 10.1038/s41526-022-00246-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 12/19/2022] [Indexed: 01/18/2023] Open
Abstract
The understanding of transport and mixing in fluids in the presence and in the absence of external fields and reactions represents a challenging topic of strategic relevance for space exploration. Indeed, mixing and transport of components in a fluid are especially important during long-term space missions where fuels, food and other materials, needed for the sustainability of long space travels, must be processed under microgravity conditions. So far, the processes of transport and mixing have been investigated mainly at the macroscopic and microscopic scale. Their investigation at the mesoscopic scale is becoming increasingly important for the understanding of mass transfer in confined systems, such as porous media, biological systems and microfluidic systems. Microgravity conditions will provide the opportunity to analyze the effect of external fields and reactions on optimizing mixing and transport in the absence of the convective flows induced by buoyancy on Earth. This would be of great practical applicative relevance to handle complex fluids under microgravity conditions for the processing of materials in space.
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3
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Liu H, Taylor AF. Influence of Oxygen on Chemoconvective Patterns in the Iodine Clock Reaction. J Phys Chem B 2022; 126:10136-10145. [PMID: 36416799 PMCID: PMC9743209 DOI: 10.1021/acs.jpcb.2c04682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
There is increasing interest in using chemical clock reactions to drive material formation; however, these reactions are often subject to chemoconvective effects, and control of such systems remains challenging. Here, we show how the transfer of oxygen at the air-water interface plays a crucial role in the spatiotemporal behavior of the iodine clock reaction with sulfite. A kinetic model was developed to demonstrate how the reaction of oxygen with sulfite can control a switch from a low-iodine to high-iodine state under well-stirred conditions and drive the formation of transient iodine gradients in unstirred solutions. In experiments in thin layers with optimal depths, the reaction couples with convective instability at the air-water interface forming an extended network-like structure of iodine at the surface that develops into a spotted pattern at the base of the layer. Thus, oxygen drives the spatial separation of iodine states essential for patterns in this system and may influence pattern selection in other clock reaction systems with sulfite.
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Affiliation(s)
- Haimiao Liu
- School
of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou221116, China
| | - Annette F. Taylor
- Chemical
and Biological Engineering, University of
Sheffield, SheffieldS1 3JD, U.K.,
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4
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Stergiou Y, Hauser MJ, Comolli A, Brau F, De Wit A, Schuszter G, Papp P, Horváth D, Roux C, Pimienta V, Eckert K, Schwarzenberger K. Effects of gravity modulation on the dynamics of a radial A+B→C reaction front. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Bere KV, Nez E, Balog E, Janovák L, Sebők D, Kukovecz Á, Roux C, Pimienta V, Schuszter G. Enhancing the yield of calcium carbonate precipitation by obstacles in laminar flow in a confined geometry. Phys Chem Chem Phys 2021; 23:15515-15521. [PMID: 34268548 DOI: 10.1039/d1cp01334c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Flow-driven precipitation experiments are performed in model porous media shaped within the confinement of a Hele-Shaw cell. Precipitation pattern formation and the yield of the reaction are investigated when borosilicate glass beads of different sizes are used in a mono-layer arrangement. The trend of the amount of precipitate produced in various porous media is estimated via visual observation. In addition, a new method is elaborated to complement such image analysis based results by titration experiments performed on gel-embedded precipitate patterns. The yield of confined porous systems is compared to experiments carried out in unsegmented reactors. It is found that the obstacles increase the amount of product and preserve its radial spatial distribution. The precipitate pattern is successfully conserved in a slightly cross-linked hydrogel matrix and its microstructure is examined using SEM. The spatial distribution of the precipitate across the cell gap is revealed using X-ray microtomography.
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Affiliation(s)
- Katalin Viktória Bere
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, Szeged, H-6720, Hungary.
| | - Emilie Nez
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Edina Balog
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, Szeged, H-6720, Hungary.
| | - László Janovák
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, Szeged, H-6720, Hungary.
| | - Dániel Sebők
- Interdisciplinary Excellence Center, Department of Applied and Environmental Chemistry, University of Szeged, Hungary
| | - Ákos Kukovecz
- Interdisciplinary Excellence Center, Department of Applied and Environmental Chemistry, University of Szeged, Hungary
| | - Clément Roux
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Veronique Pimienta
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Gábor Schuszter
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, Szeged, H-6720, Hungary.
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6
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Markovic VM, Bánsági T, McKenzie D, Mai A, Pojman JA, Taylor AF. Influence of reaction-induced convection on quorum sensing in enzyme-loaded agarose beads. CHAOS (WOODBURY, N.Y.) 2019; 29:033130. [PMID: 30927847 DOI: 10.1063/1.5089295] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/06/2019] [Indexed: 06/09/2023]
Abstract
In theory, groups of enzyme-loaded particles producing an acid or base may show complex behavior including dynamical quorum sensing, the appearance of synchronized oscillations above a critical number or density of particles. Here, experiments were performed with the enzyme urease loaded into mm-sized agarose beads and placed in a solution of urea, resulting in an increase in pH. This behavior was found to be dependent upon the number of beads present in the array; however, reaction-induced convection occurred and plumes of high pH developed that extended to the walls of the reactor. The convection resulted in the motion of the mm-sized particles and conversion of the solution to high pH. Simulations in a simple model of the beads demonstrated the suppression of dynamical quorum sensing in the presence of flow.
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Affiliation(s)
- Vladimir M Markovic
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Tamás Bánsági
- Department of Chemical and Biological Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
| | - Dennel McKenzie
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, Louisiana 70803, USA
| | - Anthony Mai
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, Louisiana 70803, USA
| | - John A Pojman
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, Louisiana 70803, USA
| | - Annette F Taylor
- Department of Chemical and Biological Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
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7
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Bába P, Rongy L, De Wit A, Hauser MJB, Tóth Á, Horváth D. Interaction of Pure Marangoni Convection with a Propagating Reactive Interface under Microgravity. PHYSICAL REVIEW LETTERS 2018; 121:024501. [PMID: 30085731 DOI: 10.1103/physrevlett.121.024501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/30/2018] [Indexed: 06/08/2023]
Abstract
A reactive interface in the form of an autocatalytic reaction front propagating in a bulk phase can generate a dynamic contact line upon reaching the free surface when a surface tension gradient builds up due to the change in chemical composition. Experiments in microgravity evidence the existence of a self-organized autonomous and localized coupling of a pure Marangoni flow along the surface with the reaction in the bulk. This dynamics results from the advancement of the contact line at the surface that acts as a moving source of the reaction, leading to the reorientation of the front propagation. Microgravity conditions allow one to isolate the transition regime during which the surface propagation is enhanced, whereas diffusion remains the main mode of transport in the bulk with negligible convective mixing, a regime typically concealed on Earth because of buoyancy-driven convection.
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Affiliation(s)
- P Bába
- Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1, Szeged H-6720, Hungary
| | - L Rongy
- Nonlinear Physical Chemistry Unit, Université libre de Bruxelles (ULB), Campus Plaine, C.P. 231, 1050 Brussels, Belgium
| | - A De Wit
- Nonlinear Physical Chemistry Unit, Université libre de Bruxelles (ULB), Campus Plaine, C.P. 231, 1050 Brussels, Belgium
| | - M J B Hauser
- Institute of Biometry and Medical Informatics, Otto von Guericke Universität Magdeburg, Leipziger Straße 44, D-39120 Magdeburg, Germany and Institute of Physics, Otto von Guericke-Universität Magdeburg, Universitätsplatz 2, D-39106 Magdeburg, Germany
| | - Á Tóth
- Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1, Szeged H-6720, Hungary
| | - D Horváth
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
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8
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Tiani R, De Wit A, Rongy L. Surface tension- and buoyancy-driven flows across horizontally propagating chemical fronts. Adv Colloid Interface Sci 2018; 255:76-83. [PMID: 28826815 DOI: 10.1016/j.cis.2017.07.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 07/07/2017] [Accepted: 07/17/2017] [Indexed: 11/17/2022]
Abstract
Chemical reactions can interplay with hydrodynamic flows to generate various complex phenomena. Because of their relevance in many research areas, chemically-induced hydrodynamic flows have attracted increasing attention in the last decades. In this context, we propose to give a review of the past and recent theoretical and experimental works which have considered the interaction of such flows with chemical fronts, i.e. reactive interfaces, formed between miscible solutions. We focus in particular on the influence of surface tension- (Marangoni) and buoyancy-driven flows on the dynamics of chemical fronts propagating horizontally in the gravity field.
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Affiliation(s)
- R Tiani
- Nonlinear Physical Chemistry Unit, Faculté des Sciences, Université libre de Bruxelles (ULB), CP231, Brussels 1050, Belgium.
| | - A De Wit
- Nonlinear Physical Chemistry Unit, Faculté des Sciences, Université libre de Bruxelles (ULB), CP231, Brussels 1050, Belgium
| | - L Rongy
- Nonlinear Physical Chemistry Unit, Faculté des Sciences, Université libre de Bruxelles (ULB), CP231, Brussels 1050, Belgium
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9
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Yang X, Baczyzmalski D, Cierpka C, Mutschke G, Eckert K. Marangoni convection at electrogenerated hydrogen bubbles. Phys Chem Chem Phys 2018; 20:11542-11548. [DOI: 10.1039/c8cp01050a] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Time-resolved PTV measurements around a hydrogen bubble growing at a Pt micro-electrode show Marangoni convection in the electrolyte.
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Affiliation(s)
- Xuegeng Yang
- Institute of Fluid Dynamics
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
- 01314 Dresden
- Germany
| | - Dominik Baczyzmalski
- Institute of Fluid Mechanics and Aerodynamics
- Universität der Bundeswehr München
- 85577 Neubiberg
- Germany
| | - Christian Cierpka
- Institute of Thermodynamics and Fluid Mechanics
- Technische Universität Ilmenau
- 98684 Ilmenau
- Germany
| | - Gerd Mutschke
- Institute of Fluid Dynamics
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
- 01314 Dresden
- Germany
| | - Kerstin Eckert
- Institute of Fluid Dynamics
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
- 01314 Dresden
- Germany
- Institute of Process Engineering
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10
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Liu Y, Ren X, Pan C, Zheng T, Yuan L, Zheng J, Gao Q. Chlorine dioxide-induced and Congo red-inhibited Marangoni effect on the chlorite-trithionate reaction front. CHAOS (WOODBURY, N.Y.) 2017; 27:104610. [PMID: 29092443 DOI: 10.1063/1.5001822] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hydrodynamic flows can exert multiple effects on an exothermal autocatalytic reaction, such as buoyancy and the Marangoni convection, which can change the structure and velocity of chemical waves. Here we report that in the chlorite-trithionate reaction, the production and consumption of chlorine dioxide can induce and inhibit Marangoni flow, respectively, leading to different chemo-hydrodynamic patterns. The horizontal propagation of a reaction-diffusion-convection front was investigated with the upper surface open to the air. The Marangoni convection, induced by gaseous chlorine dioxide on the surface, produced from chlorite disproportionation after the proton autocatalysis, has the same effect as the heat convection. When the Marangoni effect is removed by the reaction of chlorine dioxide with the Congo red (CR) indicator, an oscillatory propagation of the front tip is observed under suitable conditions. Replacing CR with bromophenol blue (BPB) distinctly enhanced the floating, resulting in multiple vortexes, owing to the coexistence between BPB and chlorine dioxide. Using the incompressible Navier-Stokes equations coupled with reaction-diffusion and heat conduction equations, we numerically obtain various experimental scenarios of front instability for the exothermic autocatalytic reaction coupled with buoyancy-driven convection and Marangoni convection.
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Affiliation(s)
- Yang Liu
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Xingfeng Ren
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Changwei Pan
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Ting Zheng
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Ling Yuan
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Juhua Zheng
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Qingyu Gao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
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11
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Guzman R, Vasquez DA. Marangoni flow traveling with reaction fronts: Eikonal approximation. CHAOS (WOODBURY, N.Y.) 2017; 27:103121. [PMID: 29092421 DOI: 10.1063/1.5008891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chemical reaction fronts traveling in liquids generate gradients of surface tension leading to fluid motion. This surface tension driven flow, known as Marangoni flow, modifies the shape and the speed of the reaction front. We model the front propagation using the Eikonal relation between curvature and normal speed of the front, resulting in a front evolution equation that couples to the fluid velocity. The sharp discontinuity between the reactants and products leads to a surface tension gradient proportional to a delta function. The Stokes equations with the surface tension gradient as part of the boundary conditions provide the corresponding fluid velocity field. Considering stress free boundaries at the bottom of the liquid layer, we find an analytical solution for the fluid vorticity leading to the velocity field. Solving numerically the appropriate no-slip boundary condition, we gain insights into the role of the boundary condition at the bottom layer. We compare our results with results from two other models for front propagation: the deterministic Kardar-Parisi-Zhang equation and a reaction-diffusion equation with cubic autocatalysis, finding good agreement for small differences in surface tension.
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Affiliation(s)
- Roberto Guzman
- Departamento de Ciencias, Sección Física, Pontificia Universidad Católica del Perú Av. Universitaria 1801, San Miguel, Lima 32, Peru
| | - Desiderio A Vasquez
- Departamento de Ciencias, Sección Física, Pontificia Universidad Católica del Perú Av. Universitaria 1801, San Miguel, Lima 32, Peru
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12
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Tiani R, Rongy L. Influence of Marangoni flows on the dynamics of isothermal A + B → C reaction fronts. J Chem Phys 2016; 145:124701. [DOI: 10.1063/1.4962580] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- R. Tiani
- Nonlinear Physical Chemistry Unit, Faculté des Sciences, Université libre de Bruxelles (ULB), CP231, 1050 Brussels, Belgium
| | - L. Rongy
- Nonlinear Physical Chemistry Unit, Faculté des Sciences, Université libre de Bruxelles (ULB), CP231, 1050 Brussels, Belgium
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13
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Budroni MA, Lemaigre L, Escala DM, Muñuzuri AP, De Wit A. Spatially Localized Chemical Patterns around an A + B → Oscillator Front. J Phys Chem A 2016; 120:851-60. [DOI: 10.1021/acs.jpca.5b10802] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. A. Budroni
- Department
of Chemistry and Pharmacy, University of Sassari, 07100 Sassari, Italy
| | - L. Lemaigre
- Université libre de Bruxelles (ULB), Nonlinear
Physical Chemistry Unit, Faculté
des Sciences, CP231, 1050 Brussels, Belgium
| | - D. M. Escala
- Nonlinear
Physics Group, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - A. P. Muñuzuri
- Nonlinear
Physics Group, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - A. De Wit
- Université libre de Bruxelles (ULB), Nonlinear
Physical Chemistry Unit, Faculté
des Sciences, CP231, 1050 Brussels, Belgium
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14
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Valkai L, Horváth AK. Compatible Mechanism for a Simultaneous Description of the Roebuck, Dushman, and Iodate–Arsenous Acid Reactions in an Acidic Medium. Inorg Chem 2016; 55:1595-603. [DOI: 10.1021/acs.inorgchem.5b02513] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- László Valkai
- Department of Inorganic Chemistry, University of Pécs, Ifjúság
útja 6, H-7624 Pécs, Hungary
| | - Attila K. Horváth
- Department of Inorganic Chemistry, University of Pécs, Ifjúság
útja 6, H-7624 Pécs, Hungary
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15
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Csekő G, Valkai L, Horváth AK. A Simple Kinetic Model for Description of the Iodate–Arsenous Acid Reaction: Experimental Evidence of the Direct Reaction. J Phys Chem A 2015; 119:11053-8. [DOI: 10.1021/acs.jpca.5b08011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- György Csekő
- Department of Inorganic Chemistry, University of Pécs, Ifjúság útja 6., H-7624 Pécs, Hungary
| | - László Valkai
- Department of Inorganic Chemistry, University of Pécs, Ifjúság útja 6., H-7624 Pécs, Hungary
| | - Attila K. Horváth
- Department of Inorganic Chemistry, University of Pécs, Ifjúság útja 6., H-7624 Pécs, Hungary
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