Equimolar CO2 Absorption by Anion-Functionalized Ionic Liquids

被引：793

作者：

Gurkan, Burcu E. ^{[1
]}

de la Fuente, Juan C. ^{[1
]}

Mindrup, Elaine M. ^{[1
]}

Ficke, Lindsay E. ^{[1
]}

Goodrich, Brett F. ^{[1
]}

Price, Erica A. ^{[1
]}

Schneider, William F. ^{[1
]}

Brennecke, Joan F. ^{[1
]}

机构：

[1] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 07期

关键词：

CARBON-DIOXIDE; SOLUBILITY; CAPTURE; GAS;

D O I：

10.1021/ja909305t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Amino acid ionic liquid trihexy(tetradecyl)phosphonium methioninate [P-66614][Met] and prolinate [P-66614][Pro] absorb CO2 in nearly 1:1 stoichiometry, surpassing by up to a factor of 2 the CO2 capture efficiency of previously reported ionic liquid and aqueous amine absorbants for CO2. Room temperature isotherms are obtained by barometric measurements in an accurately calibrated stirred cell, and the product identity is confirmed using in situ IR. Density functional theory (DFT) calculations support the 1:1 reaction stoichiometry and predict reaction enthalpies in good agreement with calorimetric measurements and isotherms.

引用

页码：2116 / +

页数：4

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