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Synthesis of normal spinel magnetite/MWNT nanocomposite | ||
| Innovations in Materials: Current & Future | ||
| مقاله 8، دوره 1، شماره 1، فروردین 2014 اصل مقاله (1.07 M) | ||
| نوع مقاله: Original Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ancr.2014.218 | ||
| نویسندگان | ||
| Mahdi Ghazanfari* 1؛ Ahmad Yazdani2 | ||
| 1Tarbiat Modares | ||
| 2Tarbiat modares | ||
| تاریخ دریافت: 09 تیر 1393، تاریخ بازنگری: 21 اسفند 1403، تاریخ پذیرش: 25 آبان 1393 | ||
| چکیده | ||
| Fe3O4/MWNT magnetic nanocomposites were synthesized by a facile solvothermal route. Distribution of Ferrous and Ferric cations among the two interstitial (tetrahedral and octahedral) sites has been estimated by applying the full pattern fitting of the Rietveld refinement method. This analysis indicated that Ferrous cations occupy tetrahedral sites. Raman spectroscopy (RS), scanning electron microscopy (SEM) and Fourier-transforminfrared spectroscopy (FT-IR) confirmed the formation of the ferrite structure on the external surfaces of the CNTs. Vibrating sample magnetometer (VSM) measurement indicated that this nanocomposite at room temperature was treated as superparamagnetic material with high saturation magnetization. | ||
| کلیدواژهها | ||
| Carbon nanotubes؛ magnetite؛ solvothermal method؛ saturation magnetization | ||
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