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SUMMARY:Vapor-phase Synthesis and Modification of Metal-Organic Framework 
 Membranes
DTSTART:20191121T160000
DTEND:20191121T170000
DTSTAMP:20260917T070532Z
UID:8b633bcedc7de1facc57f1ed5fc6251ebc688c0a917eae486309ca69
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Michael TSAPATSIS\nDepartment of Chemical and Biomolecul
 ar Engineering\,\nJohns Hopkins University\, USA\nChE-606 - Highlights in 
 Energy Research seminar series\nMetal-organic frameworks (MOFs) hold promi
 se as separation membranes due to their structural diversity stemming from
  theoretically unlimited metal/organic linker combinations enabled by dire
 ct synthesis and by post-synthetic modifications. Although relatively rapi
 d progress for highly selective MOF membranes has been achieved\, commerci
 alization is still limited by the high processing costs and limited scalab
 ility associated with solvothermal processing. The recent introduction of 
 solvent-free synthesis method for ZIF membranes\, by combining atomic laye
 r deposition and ligand vapor treatment\, called ligand induced permselect
 ivation (LIPS)\, holds promise for overcoming this obstacle. Systematic ch
 aracterization of the microstructure of LIPS-ZIF-8 membranes and their per
 meation properties under industrially relevant conditions (elevated feed p
 ressure\, absence of any sweep gas in permeate) will be discussed. Moreove
 r\, the facile modification of ZIF-8 membranes made by LIPS (LIPS-ZIF-8) t
 hrough a vapor phase ligand treatment (VPLT) method to tune their separati
 on performance towards smaller molecules will be presented. VPLT of a MOF 
 membrane is shown to allow for systematic regulation of permeation propert
 ies. Of particular interest is the observed stable O2/N2 selective perfor
 mance\, which compares favorably with that of optimized gas separation pol
 ymeric membranes. VPLT is a versatile method\, applicable to thin and thic
 k membranes made by different methods\, and when combined with LIPS\, it e
 xtends the applicability of all-vapor MOF membrane processing to unprecede
 nted levels of tunability for specific applications without sacrificing sc
 alable processability.\n\nThe seminar can also be followed remotely by joi
 ning the online Cisco WebEx meeting (connection possible 15 minutes before
  the talk).\nSee here the documentation how to install the Cisco WebEx add
 -on on your computer.\nIn case of problem\, you can contact our IT support
  (37679 - it.vs@epfl.ch)
LOCATION:Tseuzier\, I17 4 K2 https://plan.epfl.ch/?room==I17%204%20K2
STATUS:CONFIRMED
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