BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:POROUS CARBON NANOMEMBRANES: TWO-DIMENSIONAL MATERIALS FOR SEPARAT
 ION TECHNOLOGY
DTSTART:20250718T130000Z
DTEND:20250718T140000Z
DTSTAMP:20260612T012000Z
UID:indico-event-268@indico.physik.uni-bielefeld.de
DESCRIPTION:Speakers: Armin Gölzhäuser\n\nClean water is a global challe
 nge\, and membrane filtration is a key technology to achieve it. There are
  growing research efforts to explore the use of two-dimensional carbon mat
 erials as nanoconduits for transport and separation. Here\, we report on t
 he fabrication and application of carbon nanomembranes (CNMs). CNMs are tw
 o-dimensional membranes with a thickness of ~1 nm made by electron-induced
  cross-linking of self-assembled monolayers. CNMs made from terphenylthiol
  (TPT) molecules possess sub-nm pores of a density of ~1018 m−2\, which 
 corresponds to one sub-nm channel per square nanometer. TPT CNMs let water
  molecules rapidly pass through\, while they efficiently hinder the transl
 ocation of other molecules and ions. TPT CNMs have been utilized as forwar
 d osmosis membranes. Their membrane resistance reaches ~104 Ω·cm2 in 1 M
  Cl− solutions\, comparable to lipid bilayers. To investigate molecular 
 transport through the tortuous sub-nm pores of CNMs\, we studied the perme
 ation of gases and vapors of different sizes (D2O\, He\, N2\, O2\, CO2\, C
 HCl3\, C7H8 und C6H14)\, as well as of mixtures of water with the above mo
 lecules. In all mixtures the water permeation was much higher than the per
 meation of the other molecules\, resulting in a high selectivity of the CN
 M. To explain this behavior\, models of adsorption-controlled permeation (
 ACP)\, and water-assisted permeation are introduced.\n\nhttps://indico.phy
 sik.uni-bielefeld.de/event/268/
LOCATION:H6 (UHG)
URL:https://indico.physik.uni-bielefeld.de/event/268/
END:VEVENT
END:VCALENDAR