Yury Gogotsi
Title: Tunable Nano to Angstrom MXene Confinements for Ions Separation
First and last name: Yury Gogotsi
Affiliation: Drexel University
Short Biography:
Chair in the Department of Materials Science and Engineering at Drexel University (Philadelphia, USA). He also serves as Director of the A.J. Drexel Nanomaterials Institute. He received his MS (1984) and PhD (1986) from Kyiv Polytechnic and a DSc degree from the National Academy of Sciences of Ukraine in 1995. Together with his students and colleagues, he made principal contributions to the development of materials for electrochemical capacitors and other energy storage devices, discovered MXenes and polygonal nanotubes (graphite polyhedral crystals), demonstrated the tuning of structure and porosity of carbide-derived carbons, and developed new processes for the synthesis, surface modification, and purification of nanotubes and nanodiamonds. He is recognized as a Highly Cited Researcher in Materials Science and Chemistry, and a Citations Laureate in Physics by Clarivate Analytics.
Abstract (co-authored by Dr. Yuan Zhang):
As the economy grows and populations expand, there is a rising need for developing efficient water desalination and ion separation techniques. Membrane techniques, such as reverse osmosis (RO), electrodialysis (ED), nanofiltration (NF), and membrane distillation (MD), are widely used in water purification. Electrochemical desalination technologies, such as capacitive deionization (CDI)1 and desalination batteries, offer energy-efficient water desalination and selective ion removal solutions. MXenes, as a negatively charged cation-capturing material, with its Angstrom-level interlayer spacing, inherently mitigate ion-swapping effects during capacitive deionization2 and enhance its water filtration performance in membrane techniques.3 Besides, the strong photothermal effect can also effectively assist water evaporation desalination utilizing solar energy.4 To explore MXene application in water desalination and treatment, a deeper understanding of the ion transport and selection mechanism is required. Due to their tuneable interlayer spacing and surface terminations, MXene has brought a lot of new chances in ion separation through surface chemistry and atomistic design.5
- Bao, W., et al. (2018). "Porous Cryo-Dried MXene for Efficient Capacitive Deionization." Joule (2018) 2(4): 778-787
- Torkamanzadeh, M., et al. "MXene/Activated-Carbon Hybrid Capacitive Deionization for Permselective Ion Removal at Low and High Salinity." ACS Applied Materials & Interfaces (2020) 12(23): 26013-26025.
- Huang, L., et al. "MXene-based Membranes for Drinking Water Production." (2023)
- Mustakeem, M., et al. "MXene-Coated Membranes for Autonomous Solar-Driven Desalination." ACS Applied Materials & Interfaces (2022) 14(4): 5265-5274
- VahidMohammadi, A., et al. "The world of two-dimensional carbides and nitrides (MXenes)." Science (2021) 372(6547).