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À propos de : Trapped CO2 in Carbon Nanotube Bundles        

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  • Trapped CO2 in Carbon Nanotube Bundles
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  • An infrared spectroscopic study of CO2 that becomes permanently trapped in carbon nanotube bundles duringthermolysis is reported. The temperature dependence of the ν3 modes for trapped CO2 is studied with two-dimensional infrared correlation spectroscopy. Computer simulations are used to extract the basic physics oftrapped CO2 and to make qualitative connections with changes seen in the infrared spectra. Experimental andsimulated CO2 adsorption studies point to a sequential filling of adsorption sites in opened nanotubes withinterstitial sites preceding endohedral sites. The limited number of sites available to the trapped CO2 speciesis used to facilitate a tentative assignment of vibrational peaks to specific sites in the nanotube bundles.
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