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Effects of Bonding Types and Functional Groups on CO2 Capture using Novel Multiphase Systems of Liquid-like Nanoparticle Organic Hybrid Materials

Author
Lin, Kun-Yi Andrew; Park, Ah-Hyung Alissa
Abstract
Novel liquid-like nanoparticle organic hybrid materials (NOHMs) which possess unique features including negligible vapor pressure and a high degree of tunability were synthesized and their physical and chemical properties as well as CO2 capture
capacities were investigated. NOHMs can be classified based on the synthesis methods
involving different bonding types, the existence of linkers, and the addition of task-specific functional groups including amines for CO2 capture. As a canopy of polymeric chains was
grafted onto the nanoparticle cores, the thermal stability of the resulting NOHMs was
improved. In order to isolate the entropy effect during CO2 capture, NOHMs were first
prepared using polymers that do not contain functional groups with strong chemical
affinity toward CO2. However, it was found that even ether groups on the polymeric
canopy contributed toCO2 capture in NOHMs via Lewis acid base interactions, although
this effect was insignificant compared to the effect of task-specific functional groups such as amine. In all cases, a higher partial pressure of CO2 was more favorable for CO2 capture, while a higher temperature caused an adverse effect. Multicyclic CO2 capture tests confirmed superior recyclability of NOHMs and
NOHMs also showed a higher selectivity toward CO2 over N2O, O2 and N2.
Sponsorship
This publication was based on work supported by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST).
Date Issued
2011-06-15Publisher
Environmental Science & Technology
Subject
nanoparticle organic hybrid materials (NOHMs); CO2 capture; polymeric chains; polymeric canopy
Previously Published As
Lin, Kun-Yi Andrew, and Ah-Hyung Alissa Park. "Effects of Bonding Types and Functional Groups on CO2 Capture Using Novel Multiphase Systems of Liquid-like Nanoparticle Organic Hybrid Materials." Environmental Science & Technology 45 (2011): 6633-639. Print.
Type
article