Journal article
Guiding water into carbon nanopipes with the aid of bipolar electrochemistry
Microfluidics and nanofluidics, v 1(3)
Jul 2005
Abstract
The targeted bipolar electrodeposition of polypyrrole was carried out onto the tips of hydrophilic carbon nanopipes. By aligning an external electric field relative to the nanopipes, the deposition of polypyrrole onto selected ends could be achieved without physically contacting the nanopipes. After deposition, carbon nanopipes with both partially open and fully blocked tips were found. Experiments conducted in an environmental scanning electron microscope showed that water enters the nanopipes through the tip with polypyrrole due to the higher hydrophilicity of the polymer compared to the tube walls. As a result, it was possible to guide the entry of water from a specific end of the tube and fill the tube from the selected side. Condensation experiments conducted on nanopipes with polypyrrole on both tips shows the difference in hydrophilicity of the nanopipes compared to the polypyrrole. The ability to selectively control the site of condensation and uptake of fluid by carbon nanotubes or nanopipes is very important for the development of nanotube-based nanofluidic devices.
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Details
- Title
- Guiding water into carbon nanopipes with the aid of bipolar electrochemistry
- Creators
- Sundar Babu - Department of Chemistry Drexel University Philadelphia PA 19104 USAPatrick Ndungu - Department of Chemistry Drexel University Philadelphia PA 19104 USAJean-Claude Bradley - Department of Chemistry Drexel University Philadelphia PA 19104 USAMaría Rossi - Department of Materials Science and Engineering and A.J. Drexel Nanotechnology Institute Drexel University Philadelphia PA 19104 USAYury Gogotsi - Department of Materials Science and Engineering and A.J. Drexel Nanotechnology Institute Drexel University Philadelphia PA 19104 USA
- Publication Details
- Microfluidics and nanofluidics, v 1(3)
- Publisher
- Springer-Verlag; Berlin/Heidelberg
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000235302900010
- Scopus ID
- 2-s2.0-22244449654
- Other Identifier
- 991014877865604721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Instruments & Instrumentation
- Nanoscience & Nanotechnology
- Physics, Fluids & Plasmas