Supporting Information The density of the DWNT Yarns
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چکیده
where di and dO are the inner tube and outer tube diameters, respectively. The diameter of the inner tube (di) and outer tube (dO) are estimated as 1.6 nm and 2.2 nm, respectively, from Raman spectroscopy. Here, t is the wall thickness attributed to each nanotube, assumed to be 0.33 nm, equal to the spacing between graphene layers. In addition, Graphite ρ is the density of the graphite, which is assumed to be 2.25 gcm -3 . Therefore, based on Equation
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تاریخ انتشار 2010