Properties of Carbon Nanotube Fibers Spun from DNA-Stabilized Dispersions
| Autor: | Maryse-Marie-Therese Maugey, Stéphane Badaire, Joseph N. Barisci, May Tahhan, Philippe Poulin, T. Vaugien, Gordon G. Wallace |
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| Rok vydání: | 2004 |
| Předmět: |
Fabrication
Materials science Annealing (metallurgy) Carbon nanotube Conductivity Condensed Matter Physics Electrochemistry Capacitance Electronic Optical and Magnetic Materials law.invention Biomaterials chemistry.chemical_compound chemistry law Composite material Sodium dodecyl sulfate Electrical conductor |
| Zdroj: | Advanced Functional Materials. 14:133-138 |
| ISSN: | 1616-3028 1616-301X |
| DOI: | 10.1002/adfm.200304500 |
| Popis: | The fabrication of single-walled carbon nanotube (CNT) fibers containing (salmon) DNA has been demonstrated. The DNA material has been found to be adequate for dispersing relatively large concentrations (up to 1 % by weight) of carbon nanotubes. These dispersions are better suited for fiber spinning than previously studied dispersions based on conventional surfactants, such as sodium dodecyl sulfate (SDS). The DNA-containing fibers were less conductive than the fibers based on SDS, but they were significantly stronger. Considerably increased conductivity was obtained by thermally annealing the CNT/DNA fibers, a process accompanied by a loss in mechanical strength. Smaller improvements in conductivity could be introduced by annealing the carbon nanotubes before fiber production, with no alteration of the fiber mechanical properties. Those CNT/DNA fibers that were mechanically strong and conductive also exhibited good electrochemical behavior and useful capacitance values (up to 7.2 F g–1). |
| Databáze: | OpenAIRE |
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