A metal-organic framework-based splitter for separating propylene from propane

被引：915

作者：

Cadiau, A. ^{[1
]}

Adil, K. ^{[1
]}

Bhatt, P. M. ^{[1
]}

Belmabkhout, Y. ^{[1
]}

Eddaoudi, M. ^{[1
,2
]}

机构：

[1] King Abdullah Univ Sci & Technol, Funct Mat Design Discovery & Dev Res Grp FMD3, Adv Membranes & Porous Mat Ctr, Div Phys Sci & Engn, Thuwal 239556900, Saudi Arabia

[2] Univ S Florida, Dept Chem, 4202 East Fowler Ave, Tampa, FL 33620 USA

来源：

SCIENCE | 2016年 / 353卷 / 6295期

关键词：

VACUUM SWING ADSORPTION; CARBON-DIOXIDE CAPTURE; ZEOLITE; KINETICS; STORAGE; DESIGN; SITES; ORDER; UNITS; SIZE;

D O I：

10.1126/science.aaf6323

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The chemical industry is dependent on the olefin/paraffin separation, which is mainly accomplished by using energy-intensive processes. We report the use of reticular chemistry for the fabrication of a chemically stable fluorinated metal-organic framework (MOF) material (NbOFFIVE-1-Ni, also referred to as KAUST-7). The bridging of Ni(II)-pyrazine square-grid layers with (NbOF5)(2-) pillars afforded the construction of a three-dimensional MOF, enclosing a periodic array of fluoride anions in contracted square-shaped channels. The judiciously selected bulkier (NbOF5)(2-) caused the looked-for hindrance of the previously free-rotating pyrazine moieties, delimiting the pore system and dictating the pore aperture size and its maximum opening. The restricted MOF window resulted in the selective molecular exclusion of propane from propylene at atmospheric pressure, as evidenced through multiple cyclic mixed-gas adsorption and calorimetric studies.

引用

页码：137 / 140

页数：4

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