A Facile Strategy for In Situ Fabrication of Covalent Triazine Framework Aerogel with Thermal Insulation Property
Document Type
Article
Publication Date
11-1-2024
Abstract
Covalent triazine frameworks (CTFs) have attracted tremendous attention with respect to their rich nitrogen content, functional triazine units, and high porosity. However, efficient and simple preparation of CTF monoliths is still a challenge. Here, we propose a novel and facile approach for the in situ preparation of CTF aerogels. Trifluoromethanesulfonic acid was used as the solvent and catalyst, which could not only promote the polymerization reaction to form a gel but also protonate the CTFs. By virtue of the simplicity and efficiency of the strategy, a series of macroscopic CTF aerogels with tunable density were obtained by adjusting the monomer concentration. Due to the porous and partially crystalline structure, the as-produced macroscopic CTF aerogels behaved with good mechanical and thermal insulation performances. This finding thus offers an effective and easily scalable approach toward fabricating macroscopic CTF aerogels and broadens the applications of CTFs in a variety of domains.
Keywords
covalent triazine frameworks, aerogel, organicgel, thermal insulation, porous
Divisions
PHYSICS
Funders
National Natural Science Foundation of China (NSFC) (21774101) ; (22472152) ; (LZY23B040001),Natural Science Foundation of Zhejiang Province (SYY2024C000002),Foundation of Zhejiang Sci-Tech University Shengzhou Innovation Research Institute
Publication Title
ACS Applied Materials & Interfaces
Volume
16
Issue
48
Publisher
American Chemical Society
Publisher Location
1155 16TH ST, NW, WASHINGTON, DC 20036 USA