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The AEROPILs generation: Novel poly(ionic liquid)‐based aerogels for CO2 capture
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Orientador(es)
Resumo(s)
CO2 levels in the atmosphere are increasing exponentially. The current climate change effects motivate an urgent need for new and sustainable materials to capture CO2. Porous materials are particularly interesting for processes that take place near atmospheric pressure. However, materials design should not only consider the morphology, but also the chemical identity of the CO2 sorbent to enhance the affinity towards CO2. Poly(ionic liquid)s (PILs) can enhance CO2 sorption capacity, but tailoring the porosity is still a challenge. Aerogel’s properties grant production strategies that ensure a porosity control. In this work, we joined both worlds, PILs and aerogels, to produce a sustainable CO2 sorbent. PIL‐chitosan aerogels (AEROPILs) in the form of beads were successfully obtained with high porosity (94.6–97.0 %) and surface areas (270–744 m2/g). AEROPILs were applied for the first time as CO2 sorbents. The combination of PILs with chitosan aerogels generally increased the CO2 sorption capability of these materials, being the maximum CO2 capture capacity obtained (0.70 mmol g−1, at 25 °C and 1 bar) for the CHT:P[DADMA]Cl30% AEROPIL.
Descrição
UIDB/50025/2020-2023
UID/QUI/50006/2019
UIDB/50006/2020|UIDP/50006/2020
PTDC/QUI-QFI/31508/2017
PTNMR-ROTEIRO/0031/2013
PINFRA/22161/2016
COMPETE 2020, PT2020
POCI-01-0145-FEDER-007688
POCI-01-0145-FEDER-007265
ED431C 2020/17
PID2020-120010RB-I00
SFRH/BD/150662/2020
ED481B-2021-008
CA18125
Palavras-chave
Adsorption Aerogel Chitosan CO capture Polymeric ionic liquids Porosity induction Catalysis Molecular Biology Spectroscopy Computer Science Applications Physical and Theoretical Chemistry Organic Chemistry Inorganic Chemistry SDG 13 - Climate Action