CO2 capture by imidazolium-based deep eutectic solvents: the effect of steric hindrance of N-heterocyclic carbenes

被引：4

作者：

Chen, Mingzhe ^{[1
]}

Zhou, Yi ^{[1
]}

Lu, Qing ^{[1
]}

Yang, Dezhong ^{[1
]}

机构：

[1] China Univ Geosci, Sch Sci, Beijing 100083, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2024年 / 60卷 / 55期

基金：

中国国家自然科学基金;

关键词：

CARBON-DIOXIDE CAPTURE; CHOLINE-CHLORIDE; IONIC LIQUIDS; HIGHLY EFFICIENT; ETHYLENE-GLYCOL; SOLUBILITY;

D O I：

10.1039/d4cc02422b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CO2 capture by deep eutectic solvents (DESs) formed between 1,3-bis(isopropyl)imidazolium 1,2,4-triazolide ([IiPim][Triz]) and ethylene glycol (EG) is investigated in this study. [IiPim][Triz]-EG DESs exhibit a capacity of similar to 1.0 mol CO2 per mol DES at 1.0 atm and 25 degrees C. Surprisingly, mechanistic results disclose that CO2 reacts with EG but does not bind with the C-2 site of the [IiPim]+ cation, which may be due to the high steric hindrance of the C-2 site of the N-heterocyclic carbene IiPim present in [IiPim][Triz]-EG DESs.

引用

页码：7061 / 7064

页数：4

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