| Автор | Nguyen, Thi Thuy |
| Автор | Nguyen, Sy Uan |
| Автор | Phuong, Dinh Tam |
| Автор | Nguyen, Duc Chien |
| Автор | Mai, Anh Tuan |
| Дата выпуска | 2011-09-01 |
| dc.description | The dispersion of carbon nanotubes (CNTs) in liquid plays an important role in fundamental research and applied science. The most common technique applied to disperse CNTs is ultrasonication. The surfactants used for CNT dispersion are ethanol, sodium dodecyl benzenesulfonate (SDBS), dodecyltrimethylammonium bromide (DATB), sodium dodecyl sulfate (SDS) and sodium dodecylbenzene sulfonate (NaDDBS). This paper presents the dispersion of denatured CNTs by using a dimethylformamide (DMF) solution. The DMF is adsorbed on the surface of the nanotubes by a hydrophobic or π–π interaction. Ultrasonication helps DMF debundle the nanotubes by Coulombic or hydrophilic interaction, allowing the Van der Waals forces among the individual nanotubes to be overcome. UV–Vis spectra of dispersed CNTs in solution showed a maximum at 260 nm and decreased from UV to near IR. The vibration properties of the carbon samples were characterized with Raman spectroscopy, which illustrated the D and G bands of denatured CNTs at 1354 and 1581 cm<sup>−1</sup>, respectively, different from the values of 1352 cm<sup>−1</sup> and 1580 cm<sup>−1</sup>, respectively, for undenatured CNTs. Finally, the interaction between surfactants and nanotubes was studied by Fourier transform infrared spectroscopy (FTIR). |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2011 Vietnam Academy of Science & Technology |
| Название | Dispersion of denatured carbon nanotubes by using a dimethylformamide solution |
| Тип | paper |
| DOI | 10.1088/2043-6262/2/3/035015 |
| Electronic ISSN | 2043-6262 |
| Print ISSN | 2043-6254 |
| Журнал | Advances in Natural Sciences: Nanoscience and Nanotechnology |
| Том | 2 |
| Первая страница | 35015 |
| Последняя страница | 35018 |
| Аффилиация | Nguyen, Thi Thuy; Electric Power University, 235 Hoang Quoc Viet Road, Hanoi, Vietnam |
| Аффилиация | Nguyen, Sy Uan; International Training Institute for Materials Science, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, Vietnam |
| Аффилиация | Phuong, Dinh Tam; Advanced Institute of Science and Technology, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, Vietnam |
| Аффилиация | Nguyen, Duc Chien; Institute of Engineering Physics, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, Vietnam |
| Аффилиация | Mai, Anh Tuan; International Training Institute for Materials Science, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, Vietnam |
| Выпуск | 3 |
