Dai Yingying, Ren Yong, Xu Yan, Liu Qingfang, Wang Jianbo
Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, 730000 Lanzhou, Peoples Republic of China.
J Nanosci Nanotechnol. 2012 Mar;12(3):2472-6. doi: 10.1166/jnn.2012.5776.
A highly ordered Co/Ni0.4Zn0.6Fe2O4 coaxial nanocable array has been synthesized based on porous anodized aluminum oxide template via a new approach, which combines an improved sol-gel template method and alternating current electrochemical deposition. Scanning electron microscopy and transmission electron microscopy images show the nanocables are uniform with outer diameter of about 50 nm and inner diameter of about 17 nm. X-ray diffraction patterns and energy dispersive spectrometer confirm that Co nanowires are successfully deposited into the pores of the Ni0.4Zn0.6Fe2O4 nanotubes. Normalized magnetic hysteresis loops demonstrate the coercive force and the squareness with the applied field parallel to the axis of the nanocables increase dramatically compared with that of the nanotubes.
基于多孔阳极氧化铝模板，通过一种新方法合成了一种高度有序的Co/Ni0.4Zn0.6Fe2O4同轴纳米电缆阵列，该方法结合了改进的溶胶-凝胶模板法和交流电电化学沉积法。扫描电子显微镜和透射电子显微镜图像显示，纳米电缆均匀，外径约50nm，内径约17nm。X射线衍射图谱和能量色散谱仪证实，Co纳米线已成功沉积到Ni0.4Zn0.6Fe2O4纳米管的孔中。归一化磁滞回线表明，与纳米管相比，当外加磁场平行于纳米电缆轴时，矫顽力和矩形比显著增加。
