Projektbeschreibung
Intelligentere 2D-Materialien für die Wasserentsalzung
Die Energieernte oder der Zugang zu sauberem Trinkwasser durch Wasserentsalzung setzt Lösungen in Form von 2D-Materialien für wichtige Industrieanwendungen voraus. So wie Graphen, weisen diese Materialien winzige Kapillare und Hohlräume auf, die sich ideal für die Entsalzungstechnik eignen. Das Ziel des EU-finanzierten Projekts GraFludicDevices besteht in der Verbesserung des fundamentalen Verständnisses des molekularen Transports von verschiedenen 2D-Materialien in Nanokanälen. Die Forscher entwickeln 2D-Nanokanavorrichtungen zur Untersuchung der Wasserdurchflussdynamik – Permeationskinetik und selektive Abscheidung der Wassermoleküle von Ionen – unter Verwendung von angepassten Durchflussmessungstechniken. Die Ergebnisse werden das Potenzial für die kosteneffektive Anwendung von 2D-Materialien in der Wasserentsalzung und für dazugehörige Technologien näher beleuchten.
Ziel
Exploration of molecular transport in nanometre (nm) and sub-nm capillaries has big implications in the emergence of novel nanofluidic phenomena with interesting applications, including desalination, water purification, energy harvesting and smart membrane technologies. Recent advances in graphene and other two-dimensional (2D) materials based membranes with interlayer gallery of nanochannels have witnessed high water-ion selectivity and fast water permeation—manifesting their potential for desalination and smart membrane applications. However, a systematic and extensive experimental investigation of water permeation kinetics, including the demonstration of slip effects, in these atomically smooth 2D nanochannels is still lacking. Therefore, the main objective of the current research proposal is to gain a complete mechanistic understanding of water transport in nanochannels made of different 2D materials, which is crucial for the rational design of functional membranes for energy and environmental applications. This will be achieved by employing the state-of-the-art fabrication and experimental techniques based on van der Waals assembly, Landau-Squire flow measurement set-up and ultrasonic force microscopy. In this project, atomically smooth angstrom-scale 2D nanochannel devices will be prepared to investigate the flow dynamics of water using a custom-made ultrasensitive flow measurement technique. Throughout the project, advanced modelling techniques will be utilized to fundamentally understand transport and further optimize the system. Building on these findings, a scale-up methodology will be developed for the large-scale production of membranes for desalination and energy harvesting applications. The proposed research action will address Horizon 2020 Societal Challenges related to water security and resource efficiency while advancing the field of nanofluidics and membrane technology through the development of new fabrication and flow measurement methods.
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MSCA-IF-EF-ST - Standard EFKoordinator
75794 Paris
Frankreich