A Superacid-Catalyzed Synthesis of Porous Membranes Based on Triazine Frameworks for CO2 Separation

被引：420

作者：

Zhu, Xiang ^{[1
,2
,3
]}

Tian, Chengcheng ^{[1
,2
,3
]}

Mahurin, Shannon M. ^{[1
]}

Chai, Song-Hai ^{[1
]}

Wang, Congmin ^{[1
,4
]}

Brown, Suree ^{[7
]}

Veith, Gabriel M. ^{[6
]}

Luo, Huimin ^{[5
]}

Liu, Honglai ^{[2
,3
]}

Dai, Sheng ^{[1
,7
]}

机构：

[1] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

[2] E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

[3] E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

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

[5] Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN 37831 USA

[6] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

[7] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 25期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

INTRINSIC MICROPOROSITY PIMS; GAS SEPARATION; POLYMER NETWORKS; SURFACE-AREA; ORGANIC FRAMEWORKS; LINKED POLYMER; COVALENT; HYDROGEN; STORAGE; METHANE;

D O I：

10.1021/ja304879c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A general strategy for the synthesis of porous, fluorescent, triazine-framework-based membranes with intrinsic porosity through an aromatic nitrile trimerization reaction is presented. The essence of this strategy lies in the use of a superacid to catalyze the cross-linking reaction efficiently at a low temperature, allowing porous polymer membrane architectures to be facilely derived. With fiinctionalized triazine units, the membrane exhibits an increased selectivity for membrane separation of CO2 over N-2. The good ideal CO2/N-2 selectivity of 29 +/- 2 was achieved with a CO2 permeability of 518 +/- 25 barrer. Through this general synthesis protocol, a new class of porous polymer membranes with tunable functionalities and porosities can be derived, significantly expanding the currently limited library of polymers with intrinsic microporosity for synthesizing functional membranes in separation, catalysis, and energy storage/conversion.

引用

页码：10478 / 10484

页数：7

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