Rhokyun Kwak
Hanyang University
54 Papers
184 Citations
Rhokyun Kwak is an academic researcher from Hanyang University. The author has contributed to research in topics: Desalination & Electrodialysis. The author has an hindex of 17, co-authored 44 publications. Previous affiliations of Rhokyun Kwak include Massachusetts Institute of Technology & Korea Institute of Science and Technology.
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Papers
Microscale electrodialysis: Concentration profiling and vortex visualization
TL;DR: In this article, a microscale experimental model system for studying electrodialysis (ED) process is described, which is used for visualizing in situ fluid flow and concentration profile over a wide range of applied voltages (0 −100 V).
202
Shear flow of an electrically charged fluid by ion concentration polarization: scaling laws for electroconvective vortices.
TL;DR: In this paper, the authors consider electroconvective fluid flows initiated by ion concentration polarization (ICP) under pressure-driven shear flow, a scenario often found in many electrochemical devices and systems.
Shear Flow of an Electrically Charged Fluid by Ion Concentration Polarization: Scaling Laws for Electroconvective Vortices
Rhokyun Kwak,Van Sang Pham,Kian Meng Lim,Jongyoon Han +3 more
- 01 Mar 2013
TL;DR: This is the first microscopic characterization of ion concentration polarization under shear flow, and it firmly establishes electroconvection as the mechanism for an overlimiting current in realistic, large-area ion exchange membrane systems such as electrodialysis.
111
Isolation of extracellular vesicle from blood plasma using electrophoretic migration through porous membrane
TL;DR: A high-yield electro-migration method to isolate extracellular vesicles (EVs), which achieves ultracentrifugation (U/C)-level size exclusion from biological fluids (e.g., plasma) and are fully compatible with biological post-processes and assays.
109
Purification of High Salinity Brine by Multi-Stage Ion Concentration Polarization Desalination
Bumjoo Kim,Rhokyun Kwak,Hyukjin J. Kwon,Van Sang Pham,Van Sang Pham,Minseok Kim,Bader Al-Anzi,Geunbae Lim,Jongyoon Han,Jongyoon Han +9 more
TL;DR: This paper demonstrates technical and economic feasibility of ICP (Ion Concentration Polarization) electrical desalination for the high saline water treatment, by adopting multi-stage operation with better energy efficiency and less susceptibility to membrane fouling/scaling.