相关实验视频

Updated: Jun 18, 2025

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

三个基于多面体的金属有机框架展示了出色的乙烯选择性吸附

Xia Zhou¹, Zitong Song¹, Rajamani Krishna²

¹Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Sciences, Zhejiang Normal University, Jinhua 321004, P.R. China.

ACS applied materials & interfaces

|July 30, 2024

概括

基于多面体的金属有机框架 (PMOFs) 对将乙 (C2H2) 从乙烯 (C2H4) 和乙 (C2H6) 中分离有希望. 由于铜部位和最佳孔隙环境的协同效应,JLU-Liu46表现出优越的选择性.

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.
分离科学分离科学

背景情况:

有效地将乙 (C2H2) 从乙烯 (C2H4) 和乙 (C2H6) 中分离出来,对于生产高纯度的C2H2和回收有价值的气体至关重要.
基于多面体的金属有机框架 (PMOF) 提供可调节的孔径和宽的腔,使它们适合选择性气体吸附和分离.

研究的目的:

调查选定的PMOFs孔隙环境及其C2吸附和分离性能之间的关系.
为了评估JLU-Liu22,JLU-Liu46和In/Cu CBDA对C2H2/C2H4/C2H6分离的有效性.

主要方法:

选择和合成基于V型四碳酸的PMOFs (JLU-Liu22,JLU-Liu46,In/Cu CBDA).
对C2H2,C2H4和C2H6.6进行吸附和分离性能测试.
进行比较结构分析,以将孔隙环境与吸附行为相关联.

主要成果:

JLU-Liu46对C2H2/C2H4 (2.06) 和C2H2/C2H6 (2.43) 具有更高的选择性.
JLU-Liu46的增强性能归因于协调不和Cu位点和最佳毛孔环境,包括匹配的毛孔大小,极性和尿素功能组.
过渡突破模拟证实了JLU-Liu46的三元C2气体分离潜力.

结论:

PMOFs的孔隙环境显著影响C2吸附和分离效率.
JLU-Liu46在选择性乙烯捕获和分离方面表现出极好的潜力.
金属位点和框架特征的协同效应是设计有效的气体分离MOF的关键.

关键词:

在C2H2的储存中.气体吸附和气体分离.金属-有机的框架.基于多面体的子孔隙工程孔隙工程

更多相关视频

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

相关概念视频

Metal-Ligand Bonds

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

Properties of Organometallic Compounds

Properties of Organometallic Compounds

Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.