Gas transport in aluminosilicate nanotubes by diffusion NMR

Diffusion of tetrafluoromethane in aluminosilicate nanotubes was studied by means of 13 C pulsed field gradient (PFG) NMR at 297 K. The measured data allow the es timation of the diffusivity of tetrafluoromethane inside the nanotubes as well as the diffusivity for these molecules undergoing fast exchange between many nanotubes. The results support the assumption about the one-dimensional nature of the tetrafluoromethane diffusion inside nanotubes.