| 학회 |
한국재료학회 |
| 학술대회 |
2015년 봄 (05/14 ~ 05/15, 구미코) |
| 권호 |
21권 1호 |
| 발표분야 |
G. 나노/박막 재료 |
| 제목 |
Controlled synthesis of cobalt microtrees assembled by dendrites at room temperature |
| 초록 |
We firstly report a mild chemical procedure to synthesize cobalt microtrees assembled by many dendrites at room temperature using hydrazine hydrate as the reductive agent. The structure and morphology of the as obtained products were characterized by X-ray diffractometer (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM) and vibrating sample magnetometer (VSM). It was found that the dosage of hydrazine hydrate played an important role in the morphology control and the glycol as directing agent of the produced cobalt crystals. These parameters are drastically influenced the morphologies of the final products. The growth mechanism was briefly discussed on the basis of controlled experiments. Additionally, magnetization measurement revealed that the cobalt microtrees exhibited ferromagnetic characteristics at room temperature. Especially, these microtrees with dendritic petals exhibit the strongest absorption in middle frequency. |
| 저자 |
Rambabu Kuchi, Kyung-Min Lee, Surabhi Srivathsava, Jong-Ryul Jeong
|
| 소속 |
Chungnam National Univ. |
| 키워드 |
Cobalt microtrees; Morphologies; Magnetization; Dendritic petals
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| E-Mail |
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