Novel hexaazatrinaphthalene-based covalent triazine frameworks as high-performance platforms for efficient carbon capture and storage

As rigid and planar aza-based heteroaromatic scaffolds, hexaazatriphenylene (HAT) derivatives exhibit significant electron-deficient properties and high pi-pi stacking tendencies, which makes them promising building blocks for the construction of supramolecular architectures and functional porous materials. In this study, the rational design and synthesis of a family of novel and nitrogen-rich hexaazatrinaphthalene-based covalent triazine frameworks (HATN-CTFs) under ionothermal conditions was reported. Notably, the synergistic effects of ultramicroporosity and rich CO2-philic nitrogen sites empower the networks with superior CO2 adsorption capacity (up to 5.57 mmol/g at 273 K and 1 bar), outperforming most of the reported covalent triazine frameworks in literature. Furthermore, the obtained materials also exhibit significantly high CO2/N-2 (39) and CO2/CH4 (9.8) selectivities at room temperature.

Jaar van publicatie:2019

BOF-keylabel:ja

IOF-keylabel:ja

BOF-publication weight:3

CSS-citation score:1

Auteurs:International

Authors from:Higher Education

Toegankelijkheid:Closed