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Fast Mass Transport Through Sub-2-Nanometer Carbon Nanotubes SCIE SCOPUS

Title
Fast Mass Transport Through Sub-2-Nanometer Carbon Nanotubes
Authors
Holt, JasonPARK, HYUNG GYUWang, YinminStadermann, MichaelArtyukhin, AlexanderGrigoropoulos, CostasNoy, AleksandrBakajin, Olgica
Date Issued
2006-05-19
Publisher
American Association for the Advancement of Science
Abstract
We report gas and water flow measurements through microfabricated membranes in which aligned carbon nanotubes with diameters of less than 2 nanometers serve as pores. The measured gas flow exceeds predictions of the Knudsen diffusion model by more than an order of magnitude. The measured water flow exceeds values calculated from continuum hydrodynamics models by more than three orders of magnitude and is comparable to flow rates extrapolated from molecular dynamics simulations. The gas and water permeabilities of these nanotube-based membranes are several orders of magnitude higher than those of commercial polycarbonate membranes, despite having pore sizes an order of magnitude smaller. These membranes enable fundamental studies of mass transport in confined environments, as well as more energy-efficient nanoscale filtration.
URI
https://oasis.postech.ac.kr/handle/2014.oak/98739
DOI
10.1126/science.1126298
ISSN
0036-8075
Article Type
Article
Citation
Science, vol. 312, no. 5776, page. 1034 - 1037, 2006-05-19
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박형규PARK, HYUNG GYU
Dept of Mechanical Enginrg
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