Drastic enhancement of carbon dioxide adsorption in fluoroalkyl-modified poly(allylamine)

Abstract

Aminopolymer functionalization with fluoroalkyl chains and resulting void volume afford 4.1-fold increase in amine efficiency and 2.8-fold increase in CO2 capture capacity in the fluorinated material.

Engineering metal–organic frameworks for adsorption-based gas separations: from process to atomic scale

“…181 In this case, adsorption-regeneration cycles can be conveniently carried out using a thermogravimetric analyser (TGA), feeding the desired gas (or gas mixture) at the desired temperature during each stage. This approach is often used to evaluate the performance of amine-based chemisorbents, [182][183][184][185] but it has been sometimes applied to MOFs as well. [186][187][188] TGA can also provide useful information about the kinetics of adsorption and desorption.…”

Polymeric membranes through self-initiation and self-polymerization for high-performance bioethanol pervaporation

“…2d and Table S2 †). 63 When the This journal is © The Royal Society of Chemistry 2022 PI-1173IPS concentration is increased from 3 wt% to 11 wt%, the network pore radius r 3 and the o-Ps signal intensity I 3 are decreased from 0.299 nm to 0.266 nm and from 10.20% to 8.20%, respectively. These results can be explained by considering that the improvement of the eventual DBC causes an increase in the number of crosslinking sites, while the graed 1173IPS provides three orientations for bonding to the PDMS skeleton, which forms a more complex crosslinked network.…”

Overcoming mass transfer limitations in cross-linked polyethyleneimine-based adsorbents to enable selective CO2 capture at ambient temperature

“…Such a phenomenon has been suggested in previous work in which positron annihilation spectroscopy was carried out on a cross-linked CO 2 sorbent. 60…”