Zhao, Hong and Liu, Xiaofei and Tse, Stephen D.. (2008) Control of nanoparticle size and agglomeration through electric-field-enhanced flame synthesis. Journal of Nanoparticle Research, 10 (6). p. 907. ISSN 1388-0764Full text not available from this repository.
The isolated study of electrophoretic transport of nanoparticles (that are innately charged through thermionic emission), with no ionic wind, has been conducted under uniform electric fields. Titania nanoparticles are produced using a burner-supported low-pressure premixed flame in a stagnation-point geometry from corresponding organometallic vapor precursor. The material processing flow field is probed in-situ using laser-induced fluorescence (LIF) to map OH-radical concentrations and gas-phase temperatures. The experimental results of particle growth under different applied electric fields are compared with computations using monodisperse and sectional models. The results show that such electric field application can decrease aggregate particle size (e.g. from 40 to 18 nm), maintain metastable phases and particle crystallinity, and non-monotonically affect primary particle size (e.g. from 6 to 5 nm) and powder surface area. A specific surface area (SSA) for anatase titania nanopowder of 310 m2/g, when synthesized under an applied electric field of 125 V/cm, is reported. Results are also given for the synthesis of alumina nanoparticles.
|Additional Information:||With kind permission from Springer Science+Business Media: Journal of Nanoparticle Research, Control of nanoparticle size and agglomeration through electric-field-enhanced flame synthesis, 10.6, 2008, 907-923, Hong Zhao et al.|
|InterNano Taxonomy:||Nanoscale Objects and Nanostructured Materials > Nanoparticles
Nanomanufacturing Processes > Nanoparticle Synthesis
|Collections:||Nanomanufacturing Research Collection|
|Depositing User:||Rebecca Reznik-Zellen|
|Date Deposited:||05 Nov 2009 21:06|
|Last Modified:||05 Nov 2009 21:06|
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