摘要
采用FeSO4.7H2O、NiSO4.6H2O和NaOH作为反应物,充分研磨制备前驱体,对前驱体进行微波辐射制备NiFe2O4纳米粉体。通过X射线衍射分析和扫描电子显微镜分析等手段,研究了微波辐射功率、辐射时间、研磨时间对NiFe2O4纳米粉体尺寸、均匀性及团聚情况的影响。结果表明:采用微波辐射低温固相反应法能够快速且均匀地制备出结构单一的NiFe2O4尖晶石纳米晶,当微波辐射功率为700 W、辐射时间为16 min、研磨时间为20 min时,所制备的NiFe2O4尖晶石纳米晶,其晶粒呈圆片状,晶粒尺寸约为30 nm,颗粒均匀性最好,且粉体不易团聚。
The precursor powder was prepared by grinding FeSO4 · 7H2O, NiSO4 · 6H2O and NaOH sufficiently, then it was thermal treated by microwave to prepare nano-sized NiFe2O4. The influence of microwave radiant power,time and grinding time on size, uniformity of nano-sized NiFe2O4 were reviewed by XRD and SEM. The results show that the NiFe2O4 nano-sized crystal can be obtained easily and uniformly by microwave radiated low temperature solid state reaction. And when the microwave radiant power is 700 W, the microwave radiant time is 16 min and the grinding time is 20 rain, the crystal size of nano-sized wafer of NiFe2O4 is about 30 nm and nano-sized NiFe2O4 has best uniformity.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2008年第5期1215-1218,1223,共5页
Journal of Synthetic Crystals
基金
山东省中青年科学家科研奖励基金资助项目(2006BS04035)
关键词
微波辐射
低温固相反应
镍铁尖晶石
纳米片晶
microwave radiated
low temperature solid state reaction
NiFe2O4 spinel
nano-sized wafer crystal
