Significantly Enhanced Carbon Dioxide Capture by Anion-Functionalized Liquid Pillar[5]arene through Multiple-Site Interactions,Industrial & Engineering Chemistry Research

当前位置： X-MOL 学术 › Ind. Eng. Chem. Res. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Significantly Enhanced Carbon Dioxide Capture by Anion-Functionalized Liquid Pillar[5]arene through Multiple-Site Interactions
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-08-27 , DOI: 10.1021/acs.iecr.9b02872
Wenjun Lin ₁ , Zhiguo Cai ₁ , Xiaoyu Lv ₁ , Qiaoxin Xiao ₁ , Kaihong Chen ₁ , Haoran Li ₁ , Congmin Wang _{1,

2}

Affiliation

A strategy to prepare liquid anion-functionalized pillar[5]arene by incorporating a large asymmetrical cation on the rims was proposed. This kind of pillar[5]arene-based ionic liquid showed high thermal stability, good CO₂ absorption capacity, and excellent reversibility. In contrast with the neutral pillar[5]arene and the noncyclic monomeric analogue, pillar[5]arene-based ionic liquid exhibited significantly enhanced CO₂ absorption capacity. Through a combination of absorption experiments, spectroscopic investigations, and quantum chemical calculations, the results indicated that the increased capacity originated from multiple-site interactions between CO₂ and the carboxylic anion, which was enhanced by the cavity of pillar[5]arene. This work provided an efficient methodology for preparing a liquid macrocyclic host as well as improving gas absorption.

中文翻译：

阴离子官能化液态柱[5]芳烃通过多位相互作用促进了二氧化碳的捕集

提出了一种通过在轮辋上掺入较大的不对称阳离子来制备液态阴离子官能化支柱[5]芳烃的策略。这种基于柱[5]芳烃的离子液体显示出高的热稳定性，良好的CO ₂吸收能力和优异的可逆性。与中性柱[5]芳烃和非环状单体类似物相比，基于柱[5]芳烃的离子液体表现出明显增强的CO ₂吸收能力。通过吸收实验，光谱学研究和量子化学计算的组合，结果表明，增加的容量源自CO ₂之间的多位相互作用羧基阴离子，它是通过柱[5]芳烃的腔增强的。这项工作为制备液体大环主体以及提高气体吸收提供了一种有效的方法。

更新日期：2019-08-27

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南