Lee W. Drahushuk

TL;DR: Measurements of the phase boundaries of water confined within six isolated carbon nanotubes of different diameters using Raman spectroscopy reveal an exquisite sensitivity to diameter and substantially larger temperature elevations of the freezing transition than have been theoretically predicted.

TL;DR: Analytical expressions are derived for gas permeation through such atomically thin membranes in various limits of gas diffusion, surface adsorption, or pore translocation as the rate-limiting step.

TL;DR: It is shown that gas flux through discrete ångström-sized pores in monolayer graphene can be detected and then controlled using nanometre-sized gold clusters, which are formed on the surface of the graphene and can migrate and partially block a pore.

TL;DR: A stacking and folding method is used to generate aligned graphene/polycarbonate composites with as many as 320 parallel layers spanning 0.032 to 0.11 millimeters in thickness that significantly increases the effective elastic modulus and strength at exceptionally low volume fractions of only 0.082%.

TL;DR: This work simulations the permeation of adsorptive gases through sub-nanometer graphene pores using molecular dynamics simulations to provide insights into the potential and the limitations of porous graphene membranes for gas separation and provide an efficient methodology for screening nanopore configurations and sizes for the efficient separation of desired gas mixtures.