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

Abstract

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.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1211159
Resource Type:
Journal Article
Journal Name:
Journal of the American Chemical Society
Additional Journal Information:
Journal Volume: 134; Journal Issue: 25; Journal ID: ISSN 0002-7863
Country of Publication:
United States
Language:
English

Citation Formats

Zhu, X, Tian, CC, Mahurin, SM, Chai, SH, Wang, CM, Brown, S, Veith, GM, Luo, HM, Liu, HL, and Dai, S. A Superacid-Catalyzed Synthesis of Porous Membranes Based on Triazine Frameworks for CO2 Separation. United States: N. p., 2012. Web. doi:10.1021/ja304879c.
Zhu, X, Tian, CC, Mahurin, SM, Chai, SH, Wang, CM, Brown, S, Veith, GM, Luo, HM, Liu, HL, & Dai, S. A Superacid-Catalyzed Synthesis of Porous Membranes Based on Triazine Frameworks for CO2 Separation. United States. doi:10.1021/ja304879c.
Zhu, X, Tian, CC, Mahurin, SM, Chai, SH, Wang, CM, Brown, S, Veith, GM, Luo, HM, Liu, HL, and Dai, S. Wed . "A Superacid-Catalyzed Synthesis of Porous Membranes Based on Triazine Frameworks for CO2 Separation". United States. doi:10.1021/ja304879c.
@article{osti_1211159,
title = {A Superacid-Catalyzed Synthesis of Porous Membranes Based on Triazine Frameworks for CO2 Separation},
author = {Zhu, X and Tian, CC and Mahurin, SM and Chai, SH and Wang, CM and Brown, S and Veith, GM and Luo, HM and Liu, HL and Dai, S},
abstractNote = {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.},
doi = {10.1021/ja304879c},
journal = {Journal of the American Chemical Society},
issn = {0002-7863},
number = 25,
volume = 134,
place = {United States},
year = {2012},
month = {6}
}