Beilstein J. Nanotechnol.2017,8, 64–73, doi:10.3762/bjnano.8.7
dilutegas along arrays of randomly distributed, vertically aligned nanocylinders (nanotubes or nanowires) as opposed to gas diffusion in long pores, which is described by the well-known Knudsen theory. Analytical expressions for (i) the gas diffusion coefficient inside such arrays, (ii) the time between
: dilutegas; gas transport; molecular diffusion; nanocylinders; random walk; Introduction
Arrays of vertically aligned nanowires and nanotubes with high-aspect ratio composed of various materials have been widely used in science and industry. Arrays of silicon nanowires [1][2] and carbon nanotubes [3
and ARarray = 100, both being greater than 10 which lies within the applicability range of our model.
Conclusion
The diffusive transport of dilutegas in an array of vertically aligned system of randomly distributed high-aspect-ratio cylinders of random diameters has been discussed. New formulae have
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Figure 1:
Schematic of an array of randomly distributed vertically aligned high-aspect-ratio nanocylinders. T...