Effect of Hydrogen Bonds on CO2 Capture by Functionalized Deep Eutectic Solvents Derived from 4-Fluorophenol

共晶体系 氢键 溶剂 离子液体 反离子 三元运算 化学 碳酸乙烯酯 乙二胺 傅里叶变换红外光谱 药物化学 有机化学 化学工程 物理化学 分子 离子 催化作用 电解质 工程类 合金 电极 计算机科学 程序设计语言
作者
Zonghua Wang,Mingzhe Chen,Bohao Lu,Shaoze Zhang,Dezhong Yang
出处
期刊:ACS Sustainable Chemistry & Engineering [American Chemical Society]
卷期号:11 (16): 6272-6279 被引量:15
标识
DOI:10.1021/acssuschemeng.2c07590
摘要

Deep eutectic solvents (DESs) have received a great amount of attention for CO2 uptake due to their unique properties. Here, deep eutectic solvents (DESs) based on 4-fluorophenol-derived superbase ionic liquid are studied for CO2 capture. The ionic liquid used is [DBUH][4-F-PhO], formed by 1,8-diazabicyclo[5.4.0]undecane-7-ene (DBU) and 4-fluorophenol (4-F-PhOH). The DESs are obtained by mixing [DBUH][4-F-PhO] with ethylene glycol (EG) or 4-F-PhOH. Surprisingly, [DBUH][4-F-PhO]-EG DESs present a much higher CO2 capacity (∼1.0 mol CO2/mol solvent) than [DBUH][4-F-PhO]-4-F-PhOH (∼0.10 mol CO2/mol solvent) at 25 °C and 1.0 atm. However, after EG is added into [DBUH][4-F-PhO]-4-F-PhOH, the ternary solvents [DBUH][4-F-PhO]-4-F-PhOH-EG exhibit an unexpected high capacity, although both EG and [DBUH][4-F-PhO]-4-F-PhOH exhibit a low capacity. Moreover, the capacities of ternary solvents [DBUH][4-F-PhO]-4-F-PhOH-EG decrease with increasing concentration of 4-F-PhOH in the solvents. NMR and Fourier transform infrared (FTIR) results demonstrate that CO2 reacts with EG in [DBUH][4-F-PhO]-EG or [DBUH][4-F-PhO]-4-F-PhOH-EG by forming a carbonate species, while [DBUH][4-F-PhO]-4-F-PhOH binary mixtures are chemically inert to CO2. NMR analysis and theoretical calculations evidence that the strength of hydrogen bonds between [4-F-PhO]− and hydrogen-bond donors (EG and 4-F-PhOH) governs the CO2 absorption behaviors, and the strength of the hydrogen bond between the anion [4-F-PhO]− and 4-F-PhOH is much stronger than that between [4-F-PhO]− and EG. Moreover, the desorption behaviors of the DESs studied can also be controlled by tuning the strength of the hydrogen bonds in the solvents. This work highlights the important role of hydrogen bonds in CO2 capture, which may be useful for the rational design of efficient solvents for carbon capture in the future.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
123完成签到 ,获得积分10
1秒前
TMOMOR应助笑看水墨风光采纳,获得10
2秒前
yingliu完成签到,获得积分10
2秒前
张远幸完成签到,获得积分10
2秒前
负责吐司完成签到,获得积分10
3秒前
温暖幻桃发布了新的文献求助10
3秒前
畅快栾完成签到,获得积分20
3秒前
3秒前
jj发布了新的文献求助10
3秒前
3秒前
Ilan完成签到,获得积分10
4秒前
是赤赤呀发布了新的文献求助10
4秒前
挽棠完成签到,获得积分10
4秒前
4秒前
5秒前
gx20完成签到,获得积分20
5秒前
5秒前
6秒前
泡芙完成签到,获得积分10
6秒前
6秒前
6秒前
Nepenthes完成签到,获得积分10
7秒前
茴茴完成签到,获得积分10
7秒前
专注慕晴完成签到,获得积分10
7秒前
Jasper应助nxdsk采纳,获得10
7秒前
7秒前
宫跃然发布了新的文献求助10
7秒前
yao完成签到,获得积分10
8秒前
在水一方应助lwl采纳,获得10
8秒前
9秒前
小马甲应助cyw采纳,获得10
9秒前
搜集达人应助ivying0209采纳,获得10
9秒前
9秒前
可爱的函函应助曾祥龙采纳,获得10
9秒前
9秒前
专注慕晴发布了新的文献求助10
10秒前
548完成签到,获得积分10
10秒前
龙龍泷发布了新的文献求助10
10秒前
超级千青发布了新的文献求助10
11秒前
李健的粉丝团团长应助xx采纳,获得10
11秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3969222
求助须知:如何正确求助?哪些是违规求助? 3514124
关于积分的说明 11171948
捐赠科研通 3249361
什么是DOI,文献DOI怎么找? 1794799
邀请新用户注册赠送积分活动 875431
科研通“疑难数据库(出版商)”最低求助积分说明 804779