Please use this identifier to cite or link to this item:
|Title:||Agglomeration of magnetic nanoparticles|
|Authors:||Chuan Lim, E.W. |
|Citation:||Chuan Lim, E.W., Feng, R. (2012-03-28). Agglomeration of magnetic nanoparticles. Journal of Chemical Physics 136 (12) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3697865|
|Abstract:||The formation of agglomerates by salt-induced double layer compression of magnetic nanoparticles in the absence and presence of an external magnetic field was investigated experimentally as well as computationally in this study. The structures of the agglomerates were analyzed through scanning electron microscopy and proved to be highly porous and composed of large spaces among the branches of a convoluted network. In the absence of an external magnetic field, the branches of such a network were observed to be oriented in no particular direction. In contrast, when the agglomeration process was allowed to occur in the presence of an external magnetic field, these branches appeared to be oriented predominantly in one direction. A modified Discrete Element Method was applied to simulate the agglomeration process of magnetic nanoparticles both in the absence and presence of an external magnetic field. The simulations show that agglomeration occurred by the formation of random clusters of nanoparticles which then joined to form a network. In the presence of anisotropic magnetic forces, these clusters were rotated to align along the direction of the magnetic field and the final network formed consisted largely of elongated branches of magnetic nanoparticles. © 2012 American Institute of Physics.|
|Source Title:||Journal of Chemical Physics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Aug 15, 2018
WEB OF SCIENCETM
checked on Jul 23, 2018
checked on Apr 21, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.