| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Wessling, Matthias
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (35/35 displayed)
- 2024Electro‐Conductive Ti<sub>3</sub>C<sub>2</sub> MXene Multilayered Membranes: Dye Removal and Antifouling Performancecitations
- 2024Tubular and bio-based carbons as binder-free gas diffusion electrodes for heterogeneous electro-Fenton to remove micropollutantscitations
- 2023Tailoring Pore Networks – Gas Diffusion Electrodes via Additive Manufacturingcitations
- 2023Poly(aryl ether ketone) hollow fibers preparation with acid resistant spinneretscitations
- 2022Monolithic SiC supports with tailored hierarchical porosity for molecularly selective membranes and supported liquid-phase catalysiscitations
- 2022Monolithic SiC supports with tailored hierarchical porosity for molecularly selective membranes and supported liquid-phase catalysiscitations
- 2022On the Mixed Gas Behavior of Organosilica Membranes Fabricated by Plasma-Enhanced Chemical Vapor Deposition (PECVD)citations
- 2022Rotating microstructured spinnerets produce helical ridge membranes to overcome mass transfer limitationscitations
- 2022Organosilica coating layer prevents aging of a polymer with intrinsic microporositycitations
- 2020Stimuli-Responsive Zwitterionic Core-Shell Microgels for Antifouling Surface Coatingscitations
- 2020Tubular hollow fibre electrodes for CO2 reduction made from copper aluminum alloy with drastically increased intrinsic porosity
- 2020Steady-state electrochemical synthesis of HKUST-1 with polarity reversalcitations
- 2019High-Throughput Production of Micrometer Sized Double Emulsions and Microgel Capsules in Parallelized 3D Printed Microfluidic Devices
- 2019Layer-by-layer membrane modification allows scandium recovery by nanofiltrationcitations
- 2013Conjugated polymer particles : Towards self-assembling organic photonics
- 2013Challenges and advances in the field of self-assembled membranescitations
- 2012Fabrication of cell container arrays with overlaid surface topographiescitations
- 2012Fabrication of cell container arrays with overlaid surface topographiescitations
- 2012Towards a generic method for inorganic porous hollow fibers preparation with shrinkage-controlled small radial dimensions, applied to Al2O3, Ni, SiC, stainless steel, and YSZcitations
- 2011Hollow fiber ultrafiltration membranes with microstructured inner skincitations
- 2011Porous stainless steel hollow fiber membranes via dry-wet spinningcitations
- 2011Carbon nanofibers in catalytic membrane microreactorscitations
- 2011Thermoforming of film-based biomedical microdevicescitations
- 2011Porous stainless steel hollow fibers with shrinkage-controlled small radial dimensionscitations
- 2010Microstructured hollow fibers for ultrafiltrationcitations
- 2010Shrinkage effects during polmer phase separation on microfabricated moldscitations
- 2010Surface texturing inside ceramic macro/micro channelscitations
- 2010Polymeric microsieves via phase separation microfabricationcitations
- 2009Microcontact Printing of Dendrimers, Proteins, and Nanoparticles by Porous Stampscitations
- 2009Micropatterned polymer films by vapor-induced phase separation using permeable moldscitations
- 2007Morphology and Microtopology of Cation-Exchange Polymers and the Origin of the Overlimiting Currentcitations
- 2006Polymeric microsieves produced by phase separation micromoldingcitations
- 2006Fullerene-modified poly(2,6-dimethyl-1,4-phenylene oxide) gas separation membranes: Why binding is better than dispersing
- 2006Superhydrophobic Surfaces Having Two-Fold Adjustable Roughness Prepared in a Single Stepcitations
- 2005New replication technique for the fabrication of thin polymeric microfluidic devices with tunable porositycitations
Places of action
| Organizations | Location | People |
|---|
article
Morphology and Microtopology of Cation-Exchange Polymers and the Origin of the Overlimiting Current
Abstract
In electrodialysis desalination processes, the operating current density is limited by concentration polarization. In contrast to other membrane processes such as ultrafiltration, in electrodialysis, current transport above the limiting current is possible. In this work, the origin of the overlimiting current at cation-exchange polymers is investigated. We show that, under certain experimental conditions, electroconvection is the origin of the overlimiting conductance. The theory concerning electroconvection predicts a shortening of the plateau length of membranes with increased conductive or geometrical heterogeneity. We investigate the influence of these two parameters and show that the creation of line undulations on the membrane surface normal to the flow direction, having distances in the range of approximately 50−200% of the boundary-layer thickness, lead to an earlier onset of the overlimiting current. The plateau length of the undulated membranes is reduced by up to 60% compared to that of a flat membrane. These results verify the existence of electroconvection as a mechanism destabilizing the laminar boundary layer at the liquid−membrane interface and causing ionic transport above the limiting current density.