| Автор | Zhang, Hui |
| Автор | Du, Ning |
| Автор | Wu, Ping |
| Автор | Chen, Bingdi |
| Автор | Yang, Deren |
| Дата выпуска | 2008-08-06 |
| dc.description | A novel approach has been developed to synthesize magnetic nanoparticle and carbon nanotube (CNT) core–shell nanostructures, such as CoO/CNTs and Mn<sub>3</sub>O<sub>4</sub>/CNTs, by the nonaqueous solvothermal treatment of metal carbonyl on CNT templates using hexane as the solvent. The morphological and structural characterizations indicate that numerous cubic CoO or tetragonal Mn<sub>3</sub>O<sub>4</sub> nanoparticles are deposited on the surfaces of the CNTs to form CNT-based core–shell nanostructures. It is revealed that the hydrophobic interaction between nanoparticles and CNTs in hexane plays the critical role for the formation of CNT-based core–shell nanostructures. A physical property measurement system (PPMS-9, Quantum Design) analysis indicates that the CoO/CNT core–shell nanostructures show weak ferromagnetic performance at 300 K due to the ferromagnetic Co clusters and the uncompensated surface spin states, while the Mn<sub>3</sub>O<sub>4</sub>/CNT core–shell nanostructures display ferromagnetic behavior at low temperature (34.5 K), which transforms into paramagnetic behavior with increasing temperature. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | Functionalization of carbon nanotubes with magnetic nanoparticles: general nonaqueous synthesis and magnetic properties |
| Тип | paper |
| DOI | 10.1088/0957-4484/19/31/315604 |
| Electronic ISSN | 1361-6528 |
| Print ISSN | 0957-4484 |
| Журнал | Nanotechnology |
| Том | 19 |
| Первая страница | 315604 |
| Последняя страница | 315609 |
| Аффилиация | Yang, Deren; |
| Аффилиация | Zhang, Hui; State Key Lab of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China |
| Аффилиация | Du, Ning; State Key Lab of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China |
| Аффилиация | Wu, Ping; State Key Lab of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China |
| Аффилиация | Chen, Bingdi; State Key Lab of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China |
| Выпуск | 31 |
