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SUMMARY:Gas Separations in Metal-Organic Frameworks
DTSTART:20170526T160000
DTEND:20170526T170000
DTSTAMP:20260407T114506Z
UID:5b4d242df3a94d9ac63775f1ca02c8b9f21c2e5f14f88d8575c5a29f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Jeffrey R. Long\nDepartments of Chemistry and Chemical &
  Biomolecular Engineering\, \nUniversity of California\, Berkeley \nMateri
 als Sciences Division\, Lawrence Berkeley National Laboratory\nOwing to th
 eir high surface areas\, tunable pore dimensions\, and adjustable surface 
 functionality\, metal-organic frameworks (MOFs) can offer advantages for a
  variety of gas storage and gas separation applications.  In an effort to
  help curb greenhouse gas emissions from power plants\, we are developing 
 new MOFs for use as solid adsorbents in post- and pre-combustion CO2 captu
 re\, and for the separation of O2 from air\, as required for oxy-fuel comb
 ustion.  In particular\, MOFs with open metal cation sites or diamine-fun
 ctionalized surfaces are demonstrated to provide high selectivities and wo
 rking capacities for the adsorption of CO2 over N2 under flue gas conditio
 ns.1  Multicomponent adsorption measurements further show compounds of th
 e latter type to be effective in the presence of water\,2 while calorimetr
 y and temperature swing cycling data reveal a low regeneration energy comp
 ared to aqueous amine solutions.3  MOFs with open metal sites\, such as M
 g2(dobdc) (dobdc4– = 2\,5-dioxido-1\,4- benzenedicarboxylate)\, are high
 ly effective in the removal of CO2 under conditions relevant to H2 product
 ion\, including in the presence of CH4 impurities.4  Redox-active Fe2+ si
 tes in the isostructural compound Fe2(dobdc) allow the selective adsorptio
 n of O2 over N2 via an electron transfer mechanism.5  The same material i
 s demonstrated to be effective at 45 °C for the fractionation of mixtures
  of C1 and C2 hydrocarbons\, and for the high-purity separation of ethylen
 e/ethane and propylene/propane mixtures.6  Finally\, it will be shown tha
 t certain structural features possible within MOFs\, but not in zeolites\,
  can enable the fractionation of hexane isomers according to the degree of
  branching or octane number.7  \n \nReferences\n\n	McDonald\, T. M.\; Le
 e\, W. R.\; Mason\, J. A.\; Wiers\, B. M.\; Hong\, C. S.\; Long\, J. R. J.
  Am. Chem. Soc. 2012\, 134\, 7056.\n	Mason\, J. A.\; McDonald\, T. M.\; Ba
 e\, T.-H.\; Bachman\, J. E.\; Sumida\, K.\; Dutton\, J. J.\; Kaye\, S. S.\
 ; Long\, J. R. J. Am. Chem. Soc. 2015\, 137\, 4787.\n	McDonald\, T. M.\; M
 ason\, J. A.\; Kong\, X.\; Bloch\, E. D.\; Gygi\, D.\; Dani\, A.\; Crocell
 à\, V.\; Giordano\, F.\; Odoh\, S.\; Drisdell\, W.\; Vlaisavljevich\, B.\
 ; Dzubak\, A. L.\; Poloni\, R.\; Schnell\, S. K.\; Planas\, N.\; Kyuho\, L
 .\; Pascal\, T.\; Prendergast\, D.\; Neaton\, J. B.\; Smit\, B.\; Kortrigh
 t\, J. B.\; Gagliardi\, L.\; Bordiga\, S.\; Reimer\, J. A.\; Long\, J. R. 
 Nature 2015\, 519\, 303.\n	Herm\, Z. R.\; Swisher\, J. A.\; Smit\, B.\; Kr
 ishna\, R.\; Long\, J. R. J. Am. Chem. Soc. 2011\, 133\, 5664.\n	Bloch\, E
 . D.\; Murray\, L. J.\; Queen\, W. L.\; Maximoff\, S. N.\; Chavan\, S.\; B
 igi\, J. P.\; Krishna\, R.\; Peterson\, V. K.\; Grandjean\, F.\; Long\, G.
  J.\; Smit\, B.\; Bordiga\, S.\; Brown\, C. M.\; Long\, J. R. J. Am. Chem.
  Soc. 2011\, 133\, 14814.\n	Bloch\, E. D.\; Queen\, W. L.\; Krishna\, R.\;
  Zadrozny\, J. M.\; Brown\, C. M.\; Long\, J. R. Science 2012\, 335\, 1606
 .\n	Herm\, Z. R.\; Wiers\, B. M.\; Mason\, J. A.\; van Baten\, J. M.\; Hud
 son\, M. R.\; Zajdel\, P.\; Brown\, C. M.\; Masciocchi\, N.\; Krishna\, R.
 \; Long\, J. R. Science 2013\, 340\, 960.\n
LOCATION:Zeuzier https://plan.epfl.ch/theme/generalite_thm_plan_public?req
 uest_locale=fr&room=zeuzier&domain=places&dim_floor=4&lang=en&dim_lang=en&
 tree_groups=centres_nevralgiques%2Cacces%2Cmobilite_reduite%2Censeign
STATUS:CONFIRMED
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