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Dissertation/Thesis Abstract

Single-file Transport through Carbon Nanotubes by Soliton Propagation
by Sisan, Thomas B., Ph.D., Northwestern University, 2013, 242; 3595735
Abstract (Summary)

Transformative technologies for desalination and chemical separations call for understanding water transport through man-made and biological nanochannels. Using numerical simulation of single-file flow of water through infinite carbon nanotubes, we find that flow is due to fast-moving density defects (solitons) that are additive so flow rate is proportional to number of solitons. Simulation results match predictions from the Frenkel-Kontorova model for soliton propagation. From 1-300 K flow rates increase as temperature decreases. Our results build a fundamentally new understanding of nanochannel flows and suggest new principles for the design of nanoscale devices. For finite-length carbon nanotube channels, we find the flow is limited by friction at the channel ends.

Indexing (document details)
Advisor: Lichter, Seth H.
Commitee: Garg, Anupam, Marko, John F., Patankar, Neelesh A.
School: Northwestern University
Department: Physics and Astronomy
School Location: United States -- Illinois
Source: DAI-B 75/01(E), Dissertation Abstracts International
Subjects: Nanoscience, Physics, Nanotechnology
Keywords: Carbon nanotubes, Frenkel-kontorova, Molecular dynamics, Nanofluidics, Simulation, Solitons
Publication Number: 3595735
ISBN: 978-1-303-41638-5
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