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http://hdl.handle.net/10773/20494
Title: | Insights into CO2 and CH4 Adsorption by Pristine and Aromatic Amine-Modified Periodic Mesoporous Phenylene-Silicas |
Author: | Lourenco, Mirtha A. O. Siquet, Christophe Santos, Joao Jorge, Miguel Gomes, Jose R. B. Ferreira, Paula |
Keywords: | PRESSURE SWING ADSORPTION CARBON-DIOXIDE CAPTURE ACTIVATED CARBON LANDFILL GAS CHEMICAL-MODIFICATION POROUS MATERIALS ORGANIC GROUPS BETA-ZEOLITE NATURAL-GAS SEPARATION |
Issue Date: | 2016 |
Publisher: | AMER CHEMICAL SOC |
Abstract: | The synthesis and characterization of pristine and amine-functionalized periodic mesoporous phenylene-silicas having different pore sizes are reported. We explore the potential of these materials for CO2/CH4 separation, by studying the adsorption of pure CO2 and pure CH4 gases. The aminated periodic mesoporous phenylene-silica with the smallest pore size is the best adsorbent to CO2, presenting a Henry's constant of 0.56 mol.kg(-1).bar(-1) at 35 degrees C. However, the corresponding Henry's constant for CH4 is extremely low (0.06 mol.kg(-1).bar(-1) at 35 degrees C). There is a direct correlation between the % of T-SMP(2) silanols species and the values of the Henry's CO, constants, which may be used to theoretically predict experimental CO2 Henry's constants of potential adsorbents. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/20494 |
DOI: | 10.1021/acs.jpcc.6b04605 |
ISSN: | 1932-7447 |
Publisher Version: | 10.1021/acs.jpcc.6b04605 |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Insights into CO2 and CH4 Adsorption by Pristine and Aromatic Amine-Modified Periodic Mesoporous Phenylene-Silicas_10.1021acs.jpcc.6b04605.pdf | 1.96 MB | Adobe PDF |
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