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Hypercrosslinked Microporous Aromatic Heterocyclic Polymers for Highly Selective C02/N2 Separation  
Hypercrosslinked Microporous Aromatic Heterocyclic Polymers for Highly Selective C02/N2 Separation
資料類型: PDF文件
關(guān)鍵詞: Gas  adsorption  Heterocycle  microporous  polymer  Selectivity  
資料大?。?/td> 101K
所屬學(xué)科: 分子表征
來源: 第六屆亞歐研討會上處理和性能增強聚合物會議文集(2013.6.2-6 武漢)
簡介:
Theglobalclimatechangecausedbyexcessivecarbondioxide(C02)emissionshasattractedwidespreadpublicconcerninrecentyears.TostabilizeatmosphericC02levelsandpreventglobalwarming,itisimperativetodevelopviableC02captureandstorage(CCS)technologies.Microporousorganicpolymers(MOPs)relyingonphysicaladsorptionarepotentialcandidatesforC02capturebecauseoftheirlowregenerationenergyconsumptionandhighC02sorptioncapacity.Inthisstudy,aseriesofaromaticheterocycle-basedmicroporousorganicpolymerswaspreparedviaasimpleone-stepFriedel-Craftsreactionofalow-costcross-linkerwithordinaryaromaticheterocyclemonomers.ThestructureandmicromorphologyofthepolymerswereconfirmedbyFouriertransforminfrared,solid_statel3CCP/MASNMRspectroscopyandscanningelectronmicroscopy.Thematerials,withBrunauer-Emmet-Teller(BET)specificsurfaceareaover700m2.g-i,possessahighcarbondioxideuptake(upt012.7wt%at273Kandl.0bar),whicharecomparableorevenhigherthanthoseofamme-orcarboxylicacid-functionalizedmaterials.Specifically,thepyrrol-basednetwork,Py-I,showsanextraordinarilyhighselectiveadsorptionofC020verN2(about117at273K).Toourknowledge,thisselectiveC02sorptionisthehighestamongallthemicroporousmaterialsreportedtodate.TheseexcellentperformanceswouldprobablymakethempromisingcandidatesforC02captureandstorage.
作者: Y. L. Luo,B. E. Tad
上傳時間: 2013-07-04 15:55:33
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