Dependence of single-walled carbon nanotube adsorption kinetics on temperature and binding energy

We present results for the isothermal adsorption kinetics of methane, hydrogen, and tetrafluoromethane on closed-ended single-walled carbon nanotubes. In these experiments, we monitor the pressure decrease as a function of time as equilibrium is approached, after a dose of gas is added to the cell c...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1999. - 24(2008), 23 vom: 02. Dez., Seite 13465-9
1. Verfasser: Rawat, D S (VerfasserIn)
Weitere Verfasser: Krungleviciute, V, Heroux, L, Bulut, M, Calbi, M M, Migone, A D
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Fluorocarbons Nanotubes, Carbon carbon tetrafluoride 75-73-0 Hydrogen 7YNJ3PO35Z Methane OP0UW79H66
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245 1 0 |a Dependence of single-walled carbon nanotube adsorption kinetics on temperature and binding energy 
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520 |a We present results for the isothermal adsorption kinetics of methane, hydrogen, and tetrafluoromethane on closed-ended single-walled carbon nanotubes. In these experiments, we monitor the pressure decrease as a function of time as equilibrium is approached, after a dose of gas is added to the cell containing the nanotubes. The measurements were performed at different fractional coverages limited to the first layer. The results indicate that, for a given coverage and temperature, the equilibration time is an increasing function of E/(k(B)T), where E is the binding energy of the adsorbate and k(B)T is the thermal energy. These findings are consistent with recent theoretical predictions and computer simulations results that we use to interpret the experimental measurements 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Nanotubes, Carbon  |2 NLM 
650 7 |a carbon tetrafluoride  |2 NLM 
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650 7 |a Hydrogen  |2 NLM 
650 7 |a 7YNJ3PO35Z  |2 NLM 
650 7 |a Methane  |2 NLM 
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700 1 |a Krungleviciute, V  |e verfasserin  |4 aut 
700 1 |a Heroux, L  |e verfasserin  |4 aut 
700 1 |a Bulut, M  |e verfasserin  |4 aut 
700 1 |a Calbi, M M  |e verfasserin  |4 aut 
700 1 |a Migone, A D  |e verfasserin  |4 aut 
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