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  4. Mesoporous fluorocarbon-modified silica aerogel membranes enabling long-term continuous CO2 capture with large absorption flux enhancements
 
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Mesoporous fluorocarbon-modified silica aerogel membranes enabling long-term continuous CO2 capture with large absorption flux enhancements

Journal
ChemSusChem
Journal Volume
6
Journal Issue
3
Pages
437-442
Date Issued
2013
Author(s)
Lin Y.-F.
Chen C.-H.
Tung K.-L.  
Wei T.-Y.
Lu S.-Y.
Chang K.-S.
DOI
10.1002/cssc.201200837
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/410441
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874725070&doi=10.1002%2fcssc.201200837&partnerID=40&md5=951985f2b8eba5f5e27d090fbdb6157b
Abstract
The use of a membrane contactor combined with a hydrophobic porous membrane and an amine absorbent has attracted considerable attention for the capture of CO2 because of its extensive use, low operational costs, and low energy consumption. The hydrophobic porous membrane interface prevents the passage of the amine absorbent but allows the penetration of CO2 molecules that are captured by the amine absorbent. Herein, highly porous SiO2 aerogels modified with hydrophobic fluorocarbon functional groups (???CF3) were successfully coated onto a macroporous Al2O3 membrane; their performance in a membrane contactor for CO2 absorption is discussed. The SiO 2 aerogel membrane modified with ???CF3 functional groups exhibits the highest CO2 absorption flux and can be continuously operated for CO2 absorption for extended periods of time. This study suggests that a SiO2 aerogel membrane modified with ???CF3 functional groups could potentially be used in a membrane contactor for CO2 absorption. Also, the resulting hydrophobic SiO2 aerogel membrane contactor is a promising technology for large-scale CO2 absorption during the post-combustion process in power plants. Copyright ? 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Subjects
absorption
aerogels
carbon dioxide
membranes
mesoporous materials
SDGs

[SDGs]SDG7

Other Subjects
Absorption; Aerogels; Aluminum coatings; Energy utilization; Functional groups; Hydrophobicity; Membranes; Mesoporous materials; Silica gel; Continuous CO; Flux enhancement; Hydrophobic porous membranes; Low energy consumption; Macroporous; Membrane contactor; Mesoporous; Porous SiO; Post-combustion; Silica aerogels; Carbon dioxide; carbon dioxide; fluorocarbon; silicon dioxide; artificial membrane; carbon dioxide; ceramics; fluorocarbon; gel; silicon dioxide; absorption; article; artificial membrane; ceramics; chemical phenomena; chemistry; gel; isolation and purification; porosity; chemistry; isolation and purification; Absorption; Carbon Dioxide; Ceramics; Fluorocarbons; Gels; Hydrophobic and Hydrophilic Interactions; Membranes, Artificial; Porosity; Silicon Dioxide; Absorption; Carbon Dioxide; Ceramics; Fluorocarbons; Gels; Hydrophobic and Hydrophilic Interactions; Membranes, Artificial; Porosity; Silicon Dioxide
Type
journal article

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