Characterization of individualized hipco® single walled carbon nanotubes in dried dmf using potassium and sodium as charge transfer donors

Single walled carbon nanotubes (SWCNTs) are of tremendous interest for applications in future nanomaterials-based electronics. The intrinsic properties of SWCNTs make them potential candidates for particular applications such as transistors, sensing devices, high density quantum devices, among other innovative and technological outstanding electronics. Currently, there exist several ways to separate SWCNTs. The usual techniques for SWCNT characterization are Raman spectroscopy, atomic force microscopy and scanning electron microscopy. The combination of these techniques allows to identify the type of SWCNT (giving a insight to their physical and electronic properties) and if they had remained as-synthesized or e ectively well dispersed and individualized. In this research project, individualized SWCNTs will be obtained from a chemical exfoliation process that includes their intercalation with sodium and potassium dispersed in a dried optimal solvent (dimethylformamide). Although the main subject of this research project was a new method for the disentanglement, exfoliation and individualization of the SWCNT, a di erent and interesting result was obtained: the formation of meshes. This work might contribute to nanomaterials analysis-characterization and synthesis of enriched SWCNTs dispersion.

• Автор: Layana Franco, Lorena Alexandra (author)
• Формат: bachelorThesis
• Мова: eng
• Опубліковано: 2019
• Предмети: Exfoliation; Nanomaterials; RBMs; Dispersion; GIC; Exfoliación; Nanomateriales
• Онлайн доступ: http://repositorio.yachaytech.edu.ec/handle/123456789/56