Carbon molecular sieves from PET for separations involving CH4, CO2, O2 and N2

Comparative study between a CMS membrane and a CMS adsorbent: Part I—Morphology, adsorption equilibrium and kinetics

“…This tendency has been reported by other authors [47,[49][50][51][52] and it has been questioned whether or not the atomic/molecular sizes are enough to explain differences in diffusivities. It has been more frequently accepted that other factors are important to justify these differences: shape, adsorption affinity, electronic properties, etc.…”

“…It has been more frequently accepted that other factors are important to justify these differences: shape, adsorption affinity, electronic properties, etc. [49][50][51][52]. It was observed that CO 2 , being smaller than O 2 , presents a lower rate of adsorption up to ca.…”

Carbon molecular sieve membrane structure–property relationships for four novel 6FDA based polyimide precursors

“…Membranes have been widely explored for natural gas treatment [1,2], olefin-paraffin separation [3][4][5], and nitrogen enrichment from air [6]. Natural gas is the fastest-growing fossil fuel throughout the world, with consumption rising about 0.8% each year from 2012 to 2040.…”

Superuniform Molecular Nanogate Fabrication on Graphene Sheets of Single Wall Carbon Nanohorns for Selective Molecular Separation of CO2 and CH4

“…16,17 Assemblies of nanogate-SWCNH particles have a structure similar to those of closed-SWCNHs, although many pinholes may be observed on the graphene walls. The insert in Supporting Information Figure S-3b 22 shows a side view of such a pinhole, although the image is not simply understood.…”