|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|74220||49084||2012||6 صفحه PDF||سفارش دهید||دانلود رایگان|
High pressure excess adsorption isotherms of sulfur hexafluoride (SF6) and tetrafluoromethane (CF4) on metal–organic frameworks Cu3(btc)2 (HKUST-1, btc – benzene-1,3,5-tricarboxylate), Fe3FO(H2O)2(btc)3 (MIL-100), Cr3F(H2O)2O(1,4-bdc)3 (MIL-101, 1,4-bdc – 1,4-benzenedicarboxylate), Co2(1,4-bdc)2(dabco) (dabco-1,4-diazabicyclo[2.2.2]octane), Ni2(2,6-ndc)2(dabco) (DUT-8, 2,6-ndc – 2,6-naphthalenedicarboxylate), Ni2O5(btb)2 (DUT-9, btb – benzene-1,3,5-tribenzoate), Zn4O(btb), and (Zn4O(dmcpz)3) (dmcpz – 3,5-dimethyl-4-carboxypyrazolato) at 298 K were investigated using volumetric methods. Up to 1 bar pressure (at 298 K), microporous MOF with open metal sites HKUST-1 shows the best performance in SF6 adsorption and microporous Zn4O(dmcpz)3 in CF4 adsorption. At high pressure, mesoporous MIL-101 and DUT-9 have the highest storage capacities for both gases among the MOFs investigated.
Figure optionsDownload as PowerPoint slideHighlights
► MOFs are promising adsorbents for high global warming potential gases CF4 and SF6.
► Microporous MOFs are efficient for trapping at low pressure.
► Mesoporous MOFs show high uptake in high pressure region.
► The binding energy of CF4 to the adsorbent is lower than that for SF6.
Journal: Microporous and Mesoporous Materials - Volume 156, 1 July 2012, Pages 115–120