Preparation of covalent triazine frameworks with imidazolium cations embedded in basic sites and their application for CO2 capture
- Authors
- Park, Kwangho; Lee, Kwangyeol; Kim, Hyunuk; Ganesan, Vinothkumar; Cho, Kanghee; Jeong, Soon Kwan; Yoon, Sungho
- Issue Date
- May-2017
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY A, v.5, no.18, pp 8576 - 8582
- Pages
- 7
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY A
- Volume
- 5
- Number
- 18
- Start Page
- 8576
- End Page
- 8582
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/45566
- DOI
- 10.1039/c6ta11226a
- ISSN
- 2050-7488
2050-7496
- Abstract
- Functionalized covalent triazine frameworks (CTFs) realized by rational design of the monomer have been recognized as a promising candidate to achieve improvements in various applications. Here, new CTFs, 1,3-bis(pyridyl) imidazolium-based CTFs (bpim-CTFs), have been prepared via incorporation of an imidazolium motif into the monomer, which resulted in high functionalization of the frameworks. The bpim-CTFs showed N-rich environments, excellent micro-porosity (up to 1550 m(2) g(-1)) and high thermal stabilities, promising for efficient CO2 capture. The bpim-CTF-500 showed the highest CO2 uptake capacity of up to 2.77 mmol at 1 bar at a temperature of 298 K, which is higher than those of most of the other POFs except a few examples. Additionally, the frameworks featured moderate CO2 selectivity over N-2 up to 32.
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