Tuning the Gate Opening Pressure of Metal-Organic Frameworks (MOFs) for the Selective Separation of Hydrocarbons

被引：273

作者：

Nijem, Nour ^{[2
]}

Wu, Haohan ^{[1
]}

Canepa, Pieremanuele ^{[3
]}

Marti, Anne ^{[4
]}

Balkus, Kenneth J., Jr. ^{[4
]}

Thonhauser, Timo ^{[3
]}

Li, Jing ^{[1
]}

Chabal, Yves J. ^{[2
]}

机构：

[1] Rutgers State Univ, Dept Chem & Chem Biol, Piscataway, NJ 08854 USA

[2] Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75080 USA

[3] Wake Forest Univ, Dept Phys, Winston Salem, NC 27109 USA

[4] Univ Texas Dallas, Dept Chem, Richardson, TX 75080 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 37期

关键词：

KINETIC SEPARATION; ACETYLENE; ADSORPTION; HYDROGEN; SORPTION; ETHANE; CO2; FLEXIBILITY; ETHYLENE; PROPANE;

D O I：

10.1021/ja305754f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Separation of hydrocarbons is one of the most energy demanding processes. The need to develop materials for the selective adsorption of hydrocarbons, under reasonable conditions, is therefore of paramount importance. This work unveils unexpected hydrocarbon selectivity in a flexible Metal-Organic Framework (MOF), based on differences in their gate opening pressure. We show selectivity dependence on both chain length and specific framework-gas interaction. By combining Raman spectroscopy and theoretical van der Waals Density Functional (vdW-DF) calculations, the separation mechanisms governing this unexpected gate-opening behavior are revealed.

引用

页码：15201 / 15204

页数：4

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