Significant Improvements in CO2 Capture by Pyridine-Containing Anion-Functionalized Ionic Liquids through Multiple-Site Cooperative Interactions

被引：300

作者：

Luo, Xiaoyan ^{[1
]}

Guo, Yan ^{[1
]}

Ding, Fang ^{[1
]}

Zhao, Hongqing ^{[1
]}

Cui, Guokai ^{[1
]}

Li, Haoran ^{[1
]}

Wang, Congmin ^{[1
]}

机构：

[1] Zhejiang Univ, ZJU NHU United R&D Ctr, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 27期

基金：

中国国家自然科学基金;

关键词：

capture; carbon dioxide; cooperative interaction; ionic liquids; multiple site; CARBON-DIOXIDE CAPTURE; TEMPERATURE; ABSORPTION; GENERATION; STABILITY; SYNERGISM; CAPACITY; POINT; MYC;

D O I：

10.1002/anie.201400957

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A strategy for improving CO2 capture by new anion-functionalized ionic liquids (ILs) making use of multiple site cooperative interactions is reported. An extremely high capacity of up to 1.60 mol CO2 per mol IL and excellent reversibility were achieved by introducing a nitrogen-based interacting site on the phenolate and imidazolate anion. Quantum-chemical calculations, spectroscopic investigations, and calorimetric data demonstrated that multiple-site cooperative interactions between two kinds of interacting sites in the anion and CO2 resulted in superior CO2 capacities, which originated from the p-electron delocalization in the pyridine ring.

引用

页码：7053 / 7057

页数：5

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