Theoretical prediction of high pressure methane adsorption in porous aromatic frameworks (PAFs)

The adsorption isotherms of methane in four micro- and mesoporous materials, based on the diamond structure with (poly)phenyl chains inserted in all the C-C bonds, have been simulated with Grand Canonical Monte Carlo technique. The pressure range was extended above 250 bar and the isotherms were com...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 28(2012), 40 vom: 09. Okt., Seite 14405-14
1. Verfasser: Cossi, Maurizio (VerfasserIn)
Weitere Verfasser: Gatti, Giorgio, Canti, Lorenzo, Tei, Lorenzo, Errahali, Mina, Marchese, Leonardo
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a The adsorption isotherms of methane in four micro- and mesoporous materials, based on the diamond structure with (poly)phenyl chains inserted in all the C-C bonds, have been simulated with Grand Canonical Monte Carlo technique. The pressure range was extended above 250 bar and the isotherms were computed at 298, 313, and 353 K, to explore the potentiality of these materials for automotive applications, increasing the capacity of high-pressure tanks or storing a comparable amount of gas at much lower pressure. The force field employed in the simulations was optimized to fit the correct behavior of the free gas in all the pressure range and to reproduce the methane-phenyl interactions computed at high quantum mechanical level (post Hartree-Fock). All the examined materials showed a high affinity for methane, ensuring a larger storage of gas than simple compression in all the conditions: two samples exceeded the target proposed by U.S. Department of Energy for methane storage in low-pressure fuel tanks (180 cm(3) (STP)/cm(3) at 35 bar and room temperature) 
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700 1 |a Gatti, Giorgio  |e verfasserin  |4 aut 
700 1 |a Canti, Lorenzo  |e verfasserin  |4 aut 
700 1 |a Tei, Lorenzo  |e verfasserin  |4 aut 
700 1 |a Errahali, Mina  |e verfasserin  |4 aut 
700 1 |a Marchese, Leonardo  |e verfasserin  |4 aut 
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