Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/16882
Title: 
Authors: 
Keywords: 
Iron oxide nanoparticles
Super-paramagnetic
Nanoparticle synthesis
Atmospheric micro-plasma
Issue Date: 
2014
Citation: 
Wang, Y., Kaur, P., Tan, A. T. L., Singh, R., Lee, P. C. K., Springham, S. V., ... & Rawat, R. S. (2014). Iron oxide magnetic nanoparticles synthesized by atmospheric microplasmas. International Journal of Modern Physics: Conference Series, 32(2014), 1460343.
Abstract: 
This paper presents the synthesis of iron oxide nanoparticles using the atmospheric microplasma
(AMP). The properties of iron oxide nanoparticles synthesized using AMP are compared with
particles (i) formed in as-prepared solution and (ii) prepared using thermal decomposition method.
Iron oxide nanoparticles prepared by all the 3 treatment methods exhibit quite soft ferromagnetic
properties with coercivities less than 10 G. The AMP synthesis technique was found to be more
efficient and better than thermal decomposition method due to ultra-shorter experiment time
(around 2.5 min) as compared to 90 min required for thermal decomposition method. Moreover,
AMP synthesized nanoparticles are better isolated and of smaller size than thermal decomposition
ones.
The effect of plasma discharge timings on synthesized nanoparticles has also been studied in this work. Coercivity of synthesized nanoparticles decreases with the increasing plasma discharge timings from 3 to 10 min. The nanoparticles synthesized using plasma discharge timing of 10 min exhibit the smallest coercivity of around 3 G. This suggests a high possibility of achieving superparamagnetic nanoparticles by optimizing the plasma discharge timings of AMP.
URI: 
ISSN: 
2010-1945 (online)
Other Identifiers: 
10.1142/S2010194514603433
Website: 
Appears in Collections:Journal Articles

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