Knudsen Diffusivity of a Hard Sphere in a Rough Slit Pore

TitleKnudsen Diffusivity of a Hard Sphere in a Rough Slit Pore
Publication TypeJournal Article
Year of Publication2003
AuthorsG Arya, H-C Chang, and EJ Maginn
JournalPhysical Review Letters
Volume91
Issue2
Start Page026102/1
Pagination026102/1 - 026102/4
Date Published07/2003
Abstract

Studying the diffusion of gases within nanopores is an area of intense research due to the practical importance of diffusion in the areas of catalysis and separations, as well as the emerging interest in diffusion in carbon nanotubes. In the large Knudsen number limit, i.e., the rarefied gas state, which is the regime of interest, the self-diffusivity and a closely related collective property known as the transport diffusivity become equivalent. As such, the collisions between gas molecules are extremely rare and do not contribute to Ds,x.

DOI10.1103/physrevlett.91.026102
Short TitlePhysical Review Letters