کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1802752 | 1024603 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Core–shell structured iron nanoparticles well dispersed on montmorillonite Core–shell structured iron nanoparticles well dispersed on montmorillonite](/preview/png/1802752.png)
Iron nanoparticles have been successfully synthesized using sodium borohydride solution reduction of ferric trichloride hexahydrate in the presence of montmorillonite as an effective protective reagent and support as well. A combination of characterizations reveals the well disperse of these obtained iron nanoparticles supported on the external surface of clay with roughly spherical morphology and mean diameter of 55 nm. The particles are oxidation resistant well with iron core–iron oxide shell structure. The shell thickness of 3 nm remains almost invariable under ambient conditions. Discernable hysteresis loop reveals ferromagnetic behavior of the iron nanoparticles, which make them easy for magnetic separation and potential in some practical applications.
Journal: Journal of Magnetism and Magnetic Materials - Volume 321, Issue 20, October 2009, Pages 3515–3519