Effect of Pore Size on the Separation of Ethylene from Ethane in Three Isostructural Metal Azolate Frameworks

被引：9

作者：

Jiang, Xue ^{[1
]}

Zhang, Tao ^{[1
]}

Cao, Jian-Wei ^{[1
]}

Zhao, Chong-Kai ^{[1
]}

Yang, Rong ^{[1
]}

Zhang, Qiu-Yu ^{[1
]}

Chen, Kai-Jie ^{[1
]}

机构：

[1] Northwestern Polytech, Sch Chem & Chem Engn, Key Lab Special Funct & Smart Polymer Mat, Xian Key Lab Funct Organ Porous Mat,Minist Ind &, Xian 710072, Shaanxi, Peoples R China

来源：

INORGANIC CHEMISTRY | 2020年 / 59卷 / 18期

基金：

中国国家自然科学基金;

关键词：

ORGANIC FRAMEWORK; SELECTIVE ADSORPTION; TRAPPING MOF; PURIFICATION; ZEOLITE;

D O I：

10.1021/acs.inorgchem.0c02229

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The pore-size effect on ethane adsorption and ethane/ethylene separation in three isostructural metal azolate frameworks (MAF-123-Mn/Zn/Cu) were thoroughly investigated. MAF-123-Mn/Zn/Cu were synthesized by the solvothermal method on a gram scale. Decreasing the pore size from 6.1 to 4.9 angstrom leads to an increase in the ethane adsorption energy from 23 to 27.5 kJ mol(-1) and further ethane/ethylene separation efficiency. Molecule simulations revealed that a shorter ethane-framework interaction distance in MAF-123-Zn than that in MAF-123-Mn is responsible for the increased adsorption energy. Dynamic breakthrough experiments manifest that these metal azolate frameworks can effectively produce high-purity ethylene from ethane in one adsorption step.

引用

页码：13019 / 13023

页数：5

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