Conference proceeding
Fluid Transport and Phase Transition Experiments in Closed Multiwall Carbon Nanotubes
1st International Conference on Microchannels and Minichannels, pp 845-850
01 Jan 2003
Abstract
Multiwall carbon nanotubes show potential for use in various micro- and nanofluidic devices, since they resemble cylindrical channels used in the macroscopic world. However, in situ experimental studies of fluid behavior in nanotubes or nanochannels have been rare. In this work, transmission electron microscopy experiments are performed on closed-end multiwall carbon nanotubes filled with an aqueous multiphase fluid. The nanotubes form an experimental apparatus that is a few orders of magnitude smaller than the smallest channels used in other fluidic experiments. These nanotubes are synthesized hydrothermally, using Ni as a catalyst, and they contain segregated aqueous liquid and gas inclusions with clearly defined interfaces. Using electron irradiation, the multiphase fluid inside individual nanotubes is excited thermally, by expanding and contracting the electron beam. The excellent wettability of the graphitic inner tube walls by the aqueous fluid and the mobility of this liquid in the nanotubes are observed in real time with nanometer-scale resolution. Interface dynamic phenomena are visualized, as driven by thermocapillary forces as well as by evaporation and condensation. The hydrothermal nanotubes examined herein offer a promising platform for studying the behavior of multicomponent, multiphase fluids in nanosize channels at high-pressure conditions. The phenomena documented in this study demonstrate the potential of implementing such tubes in future nanofluidic devices.
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Details
- Title
- Fluid Transport and Phase Transition Experiments in Closed Multiwall Carbon Nanotubes
- Creators
- Almila G Yazicioglu - University of Illinois at Chicago, Chicago, ILConstantine M Megaridis - University of Illinois at Chicago, Chicago, ILYury Gogotsi - Drexel University, Philadelphia, PA
- Publication Details
- 1st International Conference on Microchannels and Minichannels, pp 845-850
- Conference
- 1st International Conference on Microchannels and Minichannels, 1st (Rochester, New York, United States, 24 Apr 2003–25 Apr 2003)
- Publisher
- ASMEDC
- Number of pages
- 1
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000222636600105
- Scopus ID
- 2-s2.0-1242308974
- Other Identifier
- 991014969763404721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Mechanical