Structural and Magnetic Properties of Chemically Synthesized Pd-Modified NiFe2O4 Nanoparticles  

化学合成的钯改性的NiFe2O4纳米颗粒的结构和磁性

作　　者：Shahid Aatiq Shahid M. Ramay Asif Mahmood SairaRiaza Shahzad Naseem 

机构地区：[1]巴基斯坦旁遮普邦大学固体物理卓越中心,拉合尔100190 [2]沙特阿拉伯沙特国王大学理学院物理与天文学系,利雅得11421 [3]沙特阿拉伯沙特国王大学工程学院化学工程系,利雅得11421

出　　处：《Chinese Journal of Chemical Physics》2016年第2期245-248,I0002,共5页化学物理学报（英文）

摘　　要：Magnetic nanoparticles of NiFe2O4-Pd composites have been synthesized using a simple, low cost, sol-gel auto-combustion method. As-prepared samples were sintered at 800℃ for 6 h in order to develop the crystalline phase. X-ray diffraction confirmed the spinel structure of the ferrite samples. Structural morphology and size of the nanoparticles were evaluated using a field emission scanning electron microscope. Magnetic hysteresis loops were obtained at 300 and 100 K using a physical properties measurement system. The value of saturation magnetization was observed to decrease at the temperatures with the increase of Pd contents up to 5% but then a sudden rise in saturation magnetization was observed for the addition of 10% Pd in NiFe2O4.

关 键 词：Magnetic nanoparticles Sol-gel auto-combustion Low temperature magneticproperty 

分 类 号：O[理学]