A nitrogen-rich, azaindole-based microporous organic network: synergistic effect of local dipole–π and dipole–quadrupole interactions on carbon dioxide uptake
Literature Information
Publication Date
2016-08-29
DOI
10.1039/C6PY01154C
Impact Factor
5.582
Authors
Guanjun Chang, Li Yang, Junxiao Yang, Yawen Huang, Ke Cao, Jiajun Ma, Dapeng Wang
View Original
Abstract
A new type of microporous organic polymer with azaindole units (N-PEINK) has been designed. The resulting N-PEINK exhibits good chemical and thermal stability with a decomposition temperature of 550 °C. Taking advantage of the synergistic effect of local dipole–π and dipole–quadrupole interactions between azaindole and carbon dioxide (CO2), the CO2 uptake capacity of the polymer reaches 20.8 wt% (1.0 bar, 273 K) with high selectivities (CO2/N2 = 97, CO2/CH4 = 18), making the polymer a promising microporous material for application in CO2 separation and capture. Furthermore, the azaindole-based microporous organic polymer also exhibits a high hydrogen storage (2.67 wt%) at 1.0 bar and 77 K. For comparison, the microporous organic polymer with indole units (PEINK) was also prepared.
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Polymer Chemistry
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