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nanotimes News in Brief
Nanoparticles // Low-Cost Mass Production of Monodispersed Micro/Nanoparticles
R
esearchers at the Division of Functional Materials and Nanodevices, Ningbo Institute of Materials
Technology &. Engineering (NIMTE), China, have deloped a simple and viable route to produce va- rious oxide micro/nano particles in kilogram quan- tities with low cost, simple and controllable process.
The researchers systematically studied the characteri- stic and common formation law of typical monodis- persed metal oxide nanoparticles, and developed a simple, scalable and high yield approach for the production of various monodispersed micro/nano particles with controllable size, shape and property by using of the most inexpensive precursors.
More remarkably, the monodispered spherical silica colloid with different sizes (8 to 100nm) can be pre- pared by a phase-transfer method in large scale. The polydispersibility is less than 10%.
Furthermore, the kilogram scale productions of sphe- rical titania, cigar-shaped hematite and columnar zinc oxide, with size range form 200 to 2000nm and polydispersity less than 15%, can also be achieved by simple one-step precipitation method. This will promote the applications of these materials in elec- tronic, smart fluids and special coatings.
11-05 :: May/June 2011
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