摘要
以乙二醇为溶剂,氯化铁、氯化钴、氯化镍和醋酸铵为反应试剂,采用溶剂热法制备纳米NixCo1-xFe2O4(x=0、0.3、0.5、0.7、1)铁氧体空心微球,研究镍含量对铁氧体空心球的磁性与吸波性能的影响。借助X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、振动样品磁强计(VSM)和网络分析仪对试样的物相组成、微观形貌和电磁特性进行表征。结果表明制备的镍钴铁氧体为尖晶石结构,且形貌为空心球,粒径在200 nm左右。当x=0时,镍钴铁氧体空心球饱和磁化强度最大为81.7 emu·g-1,反射损耗在1 658.8 MHz有最小值为-16.9 d B。
Nano-structure NixCO1-xFe2O4 （x=0, 0.3, 0.5, 0.7, 1） microspheres were synthesized in ethylene glycol （EG） solution, using FeC13·6H2O, COCl2·6H2O, NiC12-H20 and NH4Ac as the starting materials through solvothermal method. The influence of the amount of Ni2＋ on the magnetic and absorbing properties was studied. The structure, morphology, magnetic properties and wave absorbing properties of the products were characterized by XRD, SEM, TEM, Vibration sample magnetometer （VSM） and network vector analyzer. Results show that monodispersed NixCo1-xFe2O4 hollow microsphere ferrites are single-crystal cubic spinel structure with the average diameter of 200 nm. When x=0, the value of maximum saturation magnetization is 81.7 emu·g^-1 and the reflection loss in 1 658.8 MHz has a minimum value of -16.9 dB.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2015年第11期2181-2187,共7页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.20871108
51272239)资助项目
关键词
铁氧体
空心球
溶剂热法
制备
电磁特性
ferrite
hollow spheres
hydrothermal method
preparation
electromagnetic properties
