TU Darmstadt / ULB / TUbiblio

Measurement of Electrokinetically Induced Hydrodynamics at Ion-selective Interfaces Using 3D Micro Particle Tracking Velocimetry (µ PTV)

Stockmeier, Felix ; Schatz, Michael ; Habermann, Malte ; Linkhorst, John ; Mani, Ali ; Wessling, Matthias (2022)
Measurement of Electrokinetically Induced Hydrodynamics at Ion-selective Interfaces Using 3D Micro Particle Tracking Velocimetry (µ PTV).
In: MethodsX, 9
doi: 10.1016/j.mex.2022.101814
Article, Bibliographie

Abstract

Electrokinetic flow phenomena are ubiquitous in electrical systems for desalination, chemical conversion, or mixing at a micro-scale. However, the important features of resulting 3D flow fields are only accessible through cost-intensive numerical simulations. Experimental 2D recording of the chaotic three-dimensional velocity fields developing for example at currents exceeding the limiting current density does not capture the complex 3D structures present in such flow fields. Additionally, numerical 3D studies are limited to dimensions three orders of magnitude smaller as found in real applications and only short run times due to the enormous computational effort. To apply the theoretical knowledge in real-world systems and create the possibility for detailed parameter studies, we present the first experimental method for recording and quantifying the time-resolved velocity field in an electrochemical microfluidic cell in 3D with dimensions found in industrial applications. We utilize this method in a co-submitted paper to record the 3D velocity field of electroconvection at a cation-exchange membrane.• Cell design suitable for simultaneous electrochemical experiments with optical 3D velocity quantification• Method optimized for velocity reconstruction of membrane-to-membrane distances found in industrial cells• Highly adaptable cell design, for optical characterization of electrochemical systems

Item Type: Article
Erschienen: 2022
Creators: Stockmeier, Felix ; Schatz, Michael ; Habermann, Malte ; Linkhorst, John ; Mani, Ali ; Wessling, Matthias
Type of entry: Bibliographie
Title: Measurement of Electrokinetically Induced Hydrodynamics at Ion-selective Interfaces Using 3D Micro Particle Tracking Velocimetry (µ PTV)
Language: English
Date: 2022
Publisher: Elsevier
Journal or Publication Title: MethodsX
Volume of the journal: 9
DOI: 10.1016/j.mex.2022.101814
Abstract:

Electrokinetic flow phenomena are ubiquitous in electrical systems for desalination, chemical conversion, or mixing at a micro-scale. However, the important features of resulting 3D flow fields are only accessible through cost-intensive numerical simulations. Experimental 2D recording of the chaotic three-dimensional velocity fields developing for example at currents exceeding the limiting current density does not capture the complex 3D structures present in such flow fields. Additionally, numerical 3D studies are limited to dimensions three orders of magnitude smaller as found in real applications and only short run times due to the enormous computational effort. To apply the theoretical knowledge in real-world systems and create the possibility for detailed parameter studies, we present the first experimental method for recording and quantifying the time-resolved velocity field in an electrochemical microfluidic cell in 3D with dimensions found in industrial applications. We utilize this method in a co-submitted paper to record the 3D velocity field of electroconvection at a cation-exchange membrane.• Cell design suitable for simultaneous electrochemical experiments with optical 3D velocity quantification• Method optimized for velocity reconstruction of membrane-to-membrane distances found in industrial cells• Highly adaptable cell design, for optical characterization of electrochemical systems

Uncontrolled Keywords: 3D Velocity Field, Electroconvection, Ion-Exchange Membrane
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Chair for Process Engineering of Electrochemical Systems
Date Deposited: 13 Sep 2023 11:13
Last Modified: 13 Sep 2023 11:13
PPN:
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details