A cationic microporous metal-organic framework for highly selective separation of small hydrocarbons at room temperature

被引：84

作者：

Xu, Hui ^{[1
]}

Cai, Jianfeng ^{[1
]}

Xiang, Shengchang ^{[4
]}

Zhang, Zhangjing ^{[4
]}

Wu, Chuande ^{[5
]}

Rao, Xiangtang ^{[1
]}

Cui, Yuanjing ^{[1
]}

Yang, Yu ^{[1
]}

Krishna, Rajamani ^{[3
]}

Chen, Banglin ^{[1
,2
]}

Qian, Guodong ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Cyrus Tang Ctr Sensor Mat & Applicat, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

[2] Univ Texas San Antonio, Dept Chem, San Antonio, TX 78249 USA

[3] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1098 XH Amsterdam, Netherlands

[4] Fujian Normal Univ, Coll Chem & Mat, Fuzhou 350007, Peoples R China

[5] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 34期

基金：

中国国家自然科学基金;

关键词：

CARBON-DIOXIDE CAPTURE; HYDROGEN-ADSORPTION; COORDINATION FRAMEWORK; ACETYLENE STORAGE; POROUS FRAMEWORK; MOLECULAR-SIEVE; CO2; ADSORPTION; METHANE; SORPTION; CAPACITY;

D O I：

10.1039/c3ta12086d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new three-dimensional cationic metal-organic framework Zn8O(EDDA)(4)(ad)(4)center dot(HEDDA)(2)center dot 6DMF center dot 27H(2)O (ZJU-48; H(2)EDDA (E)-4,4'-(ethene-1,2-diyl)dibenzoic acid; ad adenine) was solvothermally synthesized and structurally characterized. ZJU-48 features a three-dimensional structure with a cationic skeleton and has one-dimensional pores along the c axis of about 9.1 x 9.1 angstrom(2). The activated ZJU-48a exhibits a BET surface area of 1450 m(2)g(-1). The structural features of the charged skeleton of ZJU-48a have enabled its stronger charge-induced interaction with C-2 hydrocarbons than with C-1 methane, resulting in highly selective gas sorption of C-2 hydrocarbons over CH4 with the adsorption selectivity over 6 at 298 K. The separation feasibility has been further established by the simulated breakthrough and pulse chromatographic experiments, thus methane can be readily separated from their quaternary mixtures at room temperature.

引用

页码：9916 / 9921

页数：6

共 70 条

[1] Zinc-Adeninate Metal-Organic Framework for Aqueous Encapsulation and Sensitization of Near-infrared and Visible Emitting Lanthanide Cations [J].