کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1490532 | 992328 | 2011 | 4 صفحه PDF | دانلود رایگان |

Using nickel and ferric nitrates and citric acid, NiFe2O4 nanoparticles are prepared by a simple and cost-effective polyvinylpyrrolidone (PVP) assisted sol–gel auto-combustion method. The synthesised nanoparticles consist of single phase inverse spinel structure of NiFe2O4. The particles are in spherical shape with an average size of ∼8 nm. The vibrational properties show tetrahedral and octahedral sites of NiFe2O4 nanoparticles. The super-paramagnetism is observed with magnetic saturation (Ms) of 50.4 emug−1.
The synthesis of nickel ferrite nanoparticles through sol–gel auto-combustion method which is a unique combination of the ignition and the chemical gelatine processes. This method has the advantages of simple preparation, cost-effective and gentle chemistry route resulting in ultra fine and homogeneous powder. The ability to obtain single-phase nickel ferrite magnetic nanoparticles with controllable particle size and size distribution improves its adequacy in a wide range of technological applications.Figure optionsDownload as PowerPoint slideHighlights
► NiFe2O4 nanoparticles have been synthesised by a simple and cost-effective polyvinylpyrrolidone (PVP) assisted sol–gel auto-combustion method.
► The particles were in spherical shape with average size of ∼8 nm.
► The superparamagnetic properties were observed.
Journal: Materials Research Bulletin - Volume 46, Issue 12, December 2011, Pages 2204–2207