Honeycomb Metal-Organic Framework with Lewis Acidic and Basic Bifunctional Sites: Selective Adsorption and CO2 Catalytic Fixation

被引：154

作者：

Li, Xiu-Yuan ^{[1
]}

Ma, Li-Na ^{[1
]}

Liu, Yang ^{[1
]}

Hou, Lei ^{[1
]}

Wang, Yao-Yu ^{[1
]}

Zhu, Zhonghua ^{[2
]}

机构：

[1] Northwest Univ, Coll Chem & Mat Sci, Key Lab Synthet & Nat Funct Mol Chem, Shaanxi Key Lab Physicoinorgan Chem,Minist Educ, Xian 710069, Shaanxi, Peoples R China

[2] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia

来源：

ACS APPLIED MATERIALS & INTERFACES | 2018年 / 10卷 / 13期

基金：

澳大利亚研究理事会;

关键词：

metal-organic framework; crystal structure; gas adsorption; chemical conversion; heterogeneous catalysis; CARBON-DIOXIDE CAPTURE; SECONDARY BUILDING UNIT; CHEMICAL FIXATION; COORDINATION POLYMER; PHASE-TRANSITION; HIGH-PERFORMANCE; SINGLE-CRYSTAL; STABLE MOF; SEPARATION; EFFICIENT;

D O I：

10.1021/acsami.8b01291

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Carrying out the strategy of incorporating rod secondary building units and polar functional groups in metal organic frameworks (MOFs) to accomplish the separation of CO2 and C-2 hydrocarbons over CH4 as well as CO2 fixation, an oxalamide-functionalized ligand N,N'-bis(isophthalic acid)-oxalamide (H4BDPO) has been designed. The solvothermal reaction of H4BDPO with the oxophilic alkaline-earth Ba2+ ion afforded a honeycomb Ba-MOF, {[Ba-2(BDPO)(H2O)]center dot DMA}(n) (1). Due to the existence of Lewis basic oxalamide groups and unsaturated Lewis acid metal sites in the tubular channels, the activated framework presents not only high C2H6, C2H4, and CO2 uptakes and selective capture from CH4, but also efficient CO2 chemical fixation as a recyclable heterogeneous catalyst. Grand canonical Monte Carlo simulations were combined to explore the adsorption selectivities for C2H6-CH4 and C2H4-CH4 mixtures as well as the interaction mechanisms between the framework and epoxides.

引用

页码：10965 / 10973

页数：9

共 60 条

[21] Applications of metal-organic frameworks featuring multi-functional sites [J].