Mechanochemistry-driven phase transformation of crystalline covalent triazine frameworks assisted by alkaline molten salts

被引：11
作者：
Fan, Juntian [1 ]
Suo, Xian [1 ]
Wang, Tao [2 ]
Wang, Zongyu [2 ]
Do-Thanh, Chi-Linh [1 ]
Mahurin, Shannon M. [2 ]
Kobayashi, Takeshi [3 ]
Yang, Zhenzhen [2 ]
Dai, Sheng [1 ,2 ]
机构：
[1] Univ Tennessee, Inst Adv Mat & Mfg, Dept Chem, Knoxville, TN 37996 USA
[2] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA
[3] Iowa State Univ, US DoE Ames Lab, Ames, IA 50011 USA
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2022年 / 10卷 / 27期
关键词：
ORGANIC FRAMEWORKS; CO2; POLYMERS; TEMPERATURE; MEMBRANES; CAPTURE; DESIGN;
D O I：
10.1039/d2ta02117j
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：
Covalent triazine frameworks (CTFs) have shown wide applications in the fields of separation, catalysis, energy storage, and beyond. However, it is a long-term challenging subject to fabricate high-quality CTF materials via facile procedures. Herein, a mechanochemistry-driven procedure was developed to achieve phase transformation of crystalline CTFs assisted by alkaline molten salts. The transformation of CTF-1 from staggered AB to eclipsed AA stacking mode was achieved by short time (30 min) mechanochemical treatment in the presence of molten salts composed of LiOH/KOH, generating high-quality CTF-1 material with high crystallinity, high surface area (625 m(2) g(-1)), and permanent/ordered porosity without carbonization under ambient conditions. This facile procedure could be extended to provide nanoporous three-dimensional CTF materials.
引用
收藏
页码：14310 / 14315
页数：6
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