29 April 2003 Determination of sorption properties, total heterogeneity, and fractal dimensions of carbon nanotubes
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Abstract
Using special thermogravimetry and sorptometry methods physicochemical properties of carbon nanotube surfaces were investigated. A numerical and analytical procedure for the evaluation of total heterogeneous properties on the basis of liquid thermodesorption from the sample surfaces under the quasi-equilibrium conditions are presented. The desorption energy distribution was derived from the mass loss Q-TG and the differential mass loss Q-DTG curves of thermodesorption of pre-adsorbed polar and apolar liquid films. It is shown that the samples are highly sensitive to benzene vapor because the mechanism of liquid adsorption depends largely on the active surface centers and molecular interactions. For the first time, the evaluation of the fractal dimensions of nanotubes using the sorptometry and thermogravimetry data is presented.
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Piotr Staszczuk, Magdalena Matyjewicz, Ewa Kowalska, Joanna Radomska, Przemyslaw Byszewski, M. Kozlowski, "Determination of sorption properties, total heterogeneity, and fractal dimensions of carbon nanotubes", Proc. SPIE 5118, Nanotechnology, (29 April 2003); doi: 10.1117/12.498781; https://doi.org/10.1117/12.498781
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