| About this Abstract |
| Meeting |
2010 TMS Annual Meeting & Exhibition
|
| Symposium
|
2010 Functional and Structural Nanomaterials: Fabrication, Properties, Applications and Implications
|
| Presentation Title |
Low-Temperature Synthesis of NiFe2O4 Spinel nanopowder via Solid-State Reactions |
| Author(s) |
Zhigang Zhang, Guangchun Yao, Jia Ma, Zhongsheng Hua, Lei Wang |
| On-Site Speaker (Planned) |
Zhigang Zhang |
| Abstract Scope |
Nickel ferrite (NiFe2O4) nanopowder was successfully synthesized via solid-state reactions at low temperature. The precursors prepared by rubbing FeSO4•7H2O, NiSO4•6H2O, NaOH and dispersant sufficiently at room temperature were calcined at different temperature for different holding time. Effects of content of dispersant, calcining temperature and holding time on morphology and grain size of nanopowder were researched by orthogonal experiment. Single factor experiment was carried out successively according to range analysis. The phase, surface morphology and grain size were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and laser particle analyzer. The solid-state reaction mechanism was discussed according to the XRD analysis of the precursors. The results indicated the NiFe2O4 spinel nanopowder prepared by adding 20wt% NaCl (dispersant) in the rubbing process and calcining at 800℃ for 1.5 hour was of pure cubic spinel structure with the grain size about 40-70 nm. |
| Proceedings Inclusion? |
Undecided |