新型多吸附位点MOF的构筑及其CO_2捕获与分离性能
详细信息 查看官网全文
- 英文论文题名：A novel MOF with multiple CO_2-philic sites for CO_2 uptake and selective separation
- 论文作者：刘晓婷 ; 贾艳媛 ; 胡同亮 ; 卜显和
- 英文论文作者：Xiao-Ting Liu ; Yan-Yuan Jia ; Tong-Liang Hu ; Xian-He Bu ; School of Material Science and Engineering ; Nankai University ; Department of Chemistry ; Nankai University
- 年：2016
- 作者机构：南开大学材料科学与工程学院;南开大学化学学院;
- 论文关键词：金属有机框架 ; 气体吸附 ; 选择性分离
- 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-第十六分会：晶体工程
- 语种：中文
- 分类号：O641.4;O647.3
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第十六分会 ; 晶体工程
- 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：255k
- 原文格式：D
- 会议级别：全国
摘要
金属有机框架(MOFs)材料因其独特的结构优势,在CO_2捕获和分离领域具有潜在的应用价值。但如何定向设计合成以及如何提高其对特定组分的吸附分离性能仍然面临巨大的挑战~([1])。基于此,我们通过引入极性基团、路易斯碱等多功能吸附位点成功构筑了一例具有新型拓扑的三维MOF,该框架在以轴方向上具有半径约为5A的一维孔道,其结构可简化为(3,3,3,3,6,6)-连接的拓扑,相应的拓扑符号是:(4.6~2)_2(4~2.6~8.8~5)。研究结果表明:多吸附位点配体的引入能有效提高MOFs的吸附分离性能。
Metal-organic frameworks(MOFs) have showed enormous potentials in CO_2 adsorption and separation due to their unique advantage.How to design and synthesize targeted and how to improve materials' capturing property remain a great challenge.Generally,polar groups and accessibly strong Lewis basic sites could increase the affinity toward CO_2.Considering this,by introducing these functional groups into ligands,we successfully obtained a new three-dimensional(3D) net,which possesses an unusual(3,3,3,3,6,6)-connected topology with(4.6~2)_2(4~2.6~8.8~5).Moreover,we further explored its gas uptake and selective separation behaviors.The results show that immobilizing multiple functional sites can indeed improve the ability of carbon capture.
Metal-organic frameworks(MOFs) have showed enormous potentials in CO_2 adsorption and separation due to their unique advantage.How to design and synthesize targeted and how to improve materials' capturing property remain a great challenge.Generally,polar groups and accessibly strong Lewis basic sites could increase the affinity toward CO_2.Considering this,by introducing these functional groups into ligands,we successfully obtained a new three-dimensional(3D) net,which possesses an unusual(3,3,3,3,6,6)-connected topology with(4.6~2)_2(4~2.6~8.8~5).Moreover,we further explored its gas uptake and selective separation behaviors.The results show that immobilizing multiple functional sites can indeed improve the ability of carbon capture.
引文
[1](a)Chen Q.,Chang Z.,Song W.C.,Song H.,Song H.B.,Hu T.L.,Bu X.H.Angew.Chem.Int.Ed.2013,52,11550.(b)Hu T.L.,Wang H.,Li B.,Krishna R.,Wu H.,Zhou W.,Zhao Y.,Han Y.,Wang X.,Zhu W.,Yao Z.,Xiang S.,Chen,B.Nat.Commun.2015,6,7823.