一种具有分子选效果的形MOF,可有效地进行C2H2/C2H4分离
Xianzhen Li1, Chen Cao1, Ziwen Fan1
1College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China. zhengniu@suda.edu.cn.
Dalton transactions (Cambridge, England : 2003)
|July 3, 2023
概括
一个新的金属有机框架,SDMOF-1,有效地将乙与乙烯分离. 它的刚性毛孔非常适合吸附乙,展示了气体分离材料的新设计策略.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 纳米技术 纳米技术
背景情况:
- 金属有机框架 (MOF) 是气体储存和分离的有希望的多孔材料.
- 在石化行业中,有效分离乙 (C2H2) 和乙烯 (C2H4) 是至关重要的.
- 为分子选设计具有特定孔径的MOF是一个活跃的研究领域.
研究的目的:
- 开发一种新的金属有机框架 (MOF) 用于选择性乙吸附和分离.
- 调查具有分子选特性的异形MOF在气体分离应用中的潜力.
- 为了证明SDMOF-1在从乙烯混合物中分离乙烯的有效性.
主要方法:
- 合成了一种新的金属有机框架,被指定为SDMOF-1.
- 描述SDMOF-1的孔隙结构和尺寸 (大约3.4 Å).
- 评估乙吸附能力和C2H2/C2H4混合物分离性能.
主要成果:
- SDMOF-1具有适合容纳乙分子的刚性毛孔.
- 该材料具有很高的乙吸附能力.
- SDMOF-1显示出对C2H2/C2H4混合物的显著分离能力.
- 该研究提出了一种新的设计方法,用于使用分子选效应的形MOF.
结论:
- SDMOF-1 是一种用于选择性乙吸附和分离的有效材料.
- 在形MOF中使用刚性,适当大小的孔隙的设计策略使高效的气体分离成为可能.
- 这项工作为开发用于工业气体分离工艺的先进材料提供了新的途径.
更多相关视频
12:05Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
Published on: October 10, 2013
15.6K
10:27Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
Published on: July 14, 2015
10.1K
相关概念视频
Structure and Physical Properties of Alkynes
10.8K
Introduction:
In nature, compounds containing both carbon and hydrogen are known as "hydrocarbons". Aliphatic hydrocarbons are compounds whose molecules contain saturated single bonds (i.e., alkanes) or unsaturated double or triple bonds. Alkenes contain carbon–carbon double bonds and have a structural formula CnH2n. Unsaturated hydrocarbons containing carbon–carbon triple bonds are called "alkynes" and are structurally represented by the formula CnH2n-2.
The...
In nature, compounds containing both carbon and hydrogen are known as "hydrocarbons". Aliphatic hydrocarbons are compounds whose molecules contain saturated single bonds (i.e., alkanes) or unsaturated double or triple bonds. Alkenes contain carbon–carbon double bonds and have a structural formula CnH2n. Unsaturated hydrocarbons containing carbon–carbon triple bonds are called "alkynes" and are structurally represented by the formula CnH2n-2.
The...
10.8K
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)
1.9K
Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
1.9K
Extraction: Advanced Methods
493
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
493
