Preparation and Properties of Magnetic Hematite Core/Alumina Shell Nanospheres
- DOI
- 10.2991/icmse-16.2016.77How to use a DOI?
- Keywords
- -Fe2O3, Alumina Nanosphere, Core-shell, Stearic Acid
- Abstract
Magnetic core/alumina shell (MFeCA) structured nanospheres were obtained by a hematite core/alumina precursor shell (HFeCAP) nanosphere precursor. A uniform alumina layer was coated on the surface of -Fe2O3 by the self-assembly of a stearic acid/alumina isopropoxide complex. Hematite cores of the nanospheres were then reduced under H2/N2 gas flow to produce the MFeCA nanospheres. Transmission electron microscopy images showed that the products possessed a distinct core-shell structure. N2 sorption measurements showed that the uniform accessible pore size was 4.0 nm. The surface area was 140m2/g and pore volume was 0.22 cm3/g. Saturation magnetization values indicated the product had a high degree of magnetization (50.2 emu/g).
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Qing-Tao Fu AU - Ting-Ting He AU - Rong-Jian Ying PY - 2016/12 DA - 2016/12 TI - Preparation and Properties of Magnetic Hematite Core/Alumina Shell Nanospheres BT - Proceedings of the 4th 2016 International Conference on Material Science and Engineering (ICMSE 2016) PB - Atlantis Press SP - 464 EP - 469 SN - 2352-5401 UR - https://doi.org/10.2991/icmse-16.2016.77 DO - 10.2991/icmse-16.2016.77 ID - Fu2016/12 ER -