Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 10, Issue 27, Pages 14310-14315Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ta02117j
Keywords
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Funding
- Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy
- Department of Energy-Basic Energy Sciences [DE-AC02-07CH11358]
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Mechanochemistry-driven phase transformation of crystalline CTFs assisted by alkaline molten salts enables the fabrication of high-quality CTF materials with high crystallinity, high surface area, and permanent/ordered porosity.
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.
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