Multiroute synthesis of porous anionic frameworks and size-tunable extraframework organic cation-controlled gas sorption properties.
Under diverse and dramatically different chemical environments, including organic solvents, an ionic liquid, and a deep eutectic solvent, a series of porous anionic framework materials that contain size-tunable, ion-exchangeable extraframework organic cations have been prepared. Even though a large fraction of the pore space is occupied with charge-balancing cations, some of these materials exhibit a very high gas uptake capacity (e.g., 70.6 cm(3)/g for CO(2) at 1 atm and 273 K), suggesting that the charged anionic framework and extraframework cations may help to enhance the gas adsorption.
Department of Chemistry and Biochemistry, California State University, Long Beach, 1250 Bellflower Boulevard, Long Beach, California 90840, USA.
Shumei
S
Chen
Jian
J
Zhang
Tao
T
Wu
Pingyun
P
Feng
Xianhui
X
Bu