1. Thermal stability of functionalized carbon nanotubes studied by in situ transmission electron microscopy
- Author
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Luo, Zhiping, Oki, Aderemi, Carson, Laura, Adams, Luqman, Neelgund, Gururaj, Soboyejo, Nathaniel, Regisford, Gloria, Stewart, Melisa, Hibbert, Kemar, Beharie, Gavannie, Kelly-Brown, Cordella, and Traisawatwong, Pasakorn
- Subjects
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CARBON nanotubes , *TRANSMISSION electron microscopy , *CHEMISTRY experiments , *CHEMICAL structure , *HEATING , *TEMPERATURE - Abstract
Abstract: The thermal stability of functionalized carbon nanotubes (CNTs) has been studied experimentally by direct in situ observations using a heating stage in a transmission electron microscope, from room temperature (RT) to about 1000°C. It was found that the thermal stability of the functionalized CNTs was significantly reduced during the in situ heating process. Their average diameter dramatically expanded from RT to about 500°C, and then tended to be stable until about 1000°C. The X-ray energy dispersive spectroscopy analysis suggested that the diameter expansion was associated with coalescence of the carbon structure instead of deposition with additional foreign elements during the heating process. [Copyright &y& Elsevier]
- Published
- 2011
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