基于3-氨基-1,2,4-三唑的碱性离子液体的二氧化碳吸附研究
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- 英文论文题名：Carbon Dioxide Capture by Basic Ionic Liquids based on 3-Amino-1,2,4-triazolate
- 论文作者：张彰 ; 张磊 ; 何玲 ; 陶国宏
- 英文论文作者：Zhang Zhang ; Lei Zhang ; Ling He ; Guo-Hong Tao ; College of Chemistry ; Sichuan University
- 年：2016
- 作者机构：四川大学化学学院;
- 论文关键词：二氧化碳 ; 吸附 ; 离子液体 ; 可逆
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十三分会：绿色化学
- 语种：中文
- 分类号：O647.3;O645.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十三分会 ; 绿色化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：147k
- 原文格式：D
- 会议级别：全国
摘要
二氧化碳的过度排放造成了生态环境中碳循环的失衡,加剧了温室效应,导致了海平面上升等一系列后果,对社会经济有着极大的负面影响。因此,开发能够高效地捕捉、固定大气中二氧化碳的吸附材料具有重要意义。~([1,2])离子液体是一种新型的绿色软材料,因其蒸汽压低、热稳定性高、电化学窗口宽和性质可调等优良特性而受到广泛关注。碱性离子液体由于具有路易斯碱性,有望用于分离、分析、催化和吸附酸性气体等领域。近年来,碱性离子液体在二氧化碳吸附领域展现出巨大的潜力,如吸附速度快、吸附过程可逆等。~([3,4])我们合成了一系列基于3-氨基-1,2,4-三唑的咪唑鎓盐的新型碱性离子液体。该离子液体具有两个化学吸附位点,能够对二氧化碳同时进行化学吸附与物理吸附。实验结果表明每摩尔离子液体可以吸附1.5个当量的二氧化碳。同之前许多被用于二氧化碳捕捉的离子液体一样,二氧化碳吸附过程几乎完全可逆。此外,我们还尝试借助一些计算手段来进一步理解化学吸附过程。
Emission of excess carbon dioxide has led to imbalance of carbon cycle,enhancing greenhouse effect and affecting society and economy.Therefore development of sorbent materials that can efficiently capture and immobilize CO_2 in the atmosphere has drawn significant attention.~([1,2]) Ionic liquids(ILs),as a catalog of novel,green and recyclable soft material,have received general interest.Owing to their Lewis basicity,basic ionic liquids have shown remarkable performance in the field of CO_2 absorption,such as reversibility and high absorption rate of the CO_2 capture process take priority over the others.~([3])Here we introduce a series of new basic ionic liquids derived from 3-amino-1,2,4-triazolate,which are able to absorb carbon dioxide,chemically and physically,with a capacity about 1.5 equivalent.Like many other previous CO_2-capturing ILs,the capture process is nearly hundred-percent reversible.Moreover,computational methods have been applied to gain insight into the chemisorption process.
Emission of excess carbon dioxide has led to imbalance of carbon cycle,enhancing greenhouse effect and affecting society and economy.Therefore development of sorbent materials that can efficiently capture and immobilize CO_2 in the atmosphere has drawn significant attention.~([1,2]) Ionic liquids(ILs),as a catalog of novel,green and recyclable soft material,have received general interest.Owing to their Lewis basicity,basic ionic liquids have shown remarkable performance in the field of CO_2 absorption,such as reversibility and high absorption rate of the CO_2 capture process take priority over the others.~([3])Here we introduce a series of new basic ionic liquids derived from 3-amino-1,2,4-triazolate,which are able to absorb carbon dioxide,chemically and physically,with a capacity about 1.5 equivalent.Like many other previous CO_2-capturing ILs,the capture process is nearly hundred-percent reversible.Moreover,computational methods have been applied to gain insight into the chemisorption process.
引文
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