The initial adsorption process of benzene in double-walled carbon nanotubes studied by in situ solid-state NMR?
RSC Advances Pub Date: 2015-08-10 DOI: 10.1039/C5RA12490E
Abstract
Information of adsorption and diffusion in nanoporous material is helpful to fundamentally understand nanocatalysis and gas sensors. In this work, the adsorption process of benzene in double-walled carbon nanotubes (DWNTs) at the very earliest stages was directly monitored for the first time by using in situ solid-state 13C NMR. The results indicate that benzenes in and out of DWNTs can be conveniently distinguished by 13C MAS NMR. The kinetics of the adsorption process was obtained by integrating the 13C peaks as a function of adsorption time. The kinetic could be interpreted with a model of opposing adsorption–desorption process and the kinetic curves could be satisfyingly fitted by an exponential function.
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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