[1]苏轶坤,邓宇骏,黄湘愉,等.Fe纳米线的制备与表征[J].深圳大学学报理工版,2013,30(No.6(551-660)):617-622.[doi:10.3724/SP.J.1249.2013.06617]
 Su Yikun,Deng Yujun,Huang Xiangyu,et al.Preparation and characterization of Fe nanowire arrays[J].Journal of Shenzhen University Science and Engineering,2013,30(No.6(551-660)):617-622.[doi:10.3724/SP.J.1249.2013.06617]
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Fe纳米线的制备与表征()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第30卷
期数:
2013年No.6(551-660)
页码:
617-622
栏目:
材料科学
出版日期:
2013-09-30

文章信息/Info

Title:
Preparation and characterization of Fe nanowire arrays
文章编号:
20130611
作者:
苏轶坤邓宇骏黄湘愉翁琼曾云汤皎宁
深圳市特种功能材料重点实验室,深圳大学材料学院,深圳 518060
Author(s):
Su Yikun Deng Yujun Huang Xiangyu Weng Qiong Zeng Yun and Tang Jiaoning
Shenzhen Key Laboratory of Special Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, P.R.China 16:50:08
关键词:
电化学沉积纳米线阳极氧化铝模板有序阵列垂直磁各向异性磁滞回线
Keywords:
electrochemical deposition nanowire anodic aluminum oxide template ordered arrays perpendicular magnetic anisotropy hysteresis loop
分类号:
O 646
DOI:
10.3724/SP.J.1249.2013.06617
文献标志码:
A
摘要:
采用恒电位阴极还原法,在阳极氧化铝模板上进行电化学沉积,制备了直径与模板孔径一致的Fe纳米线. 通过循环伏安法研究Fe在Ag基底上的电沉积规律,以确定还原电位的范围,利用X射线衍射方法表征各沉积电位下得到的Fe纳米薄膜的晶体结构,以X射线荧光光谱分析确定在各电位下沉积300 s后Fe电沉积量的变化规律. 结果表明, 在-1.05~-1.20 V范围内, 电位越高, Fe在Ag基底上的沉积量越多. 以扫描电子显微镜观察-1.20 V、300 s内在阳极氧化铝模板上点沉积Fe获得的纳米线的形貌,发现所制备的Fe纳米线具有较大长径比. 利用振动样品磁强计对样品进行磁学特性测试显示,外加磁场与纳米线线轴平行时比两者垂直时具有更强的矫顽力和更大的剩磁比,表明纳米线阵列具有明显的磁各向异性.
Abstract:
Fe nanowire arrays consisting with the template size are fabricated by electro-deposition of potentiostatic cathodic reduction into the pores of a porous anodic aluminum oxide (AAO) template. The range of reduction potentials is determined by cyclic voltammetry of Fe. The structure of Fe nanowire arrays under different deposition potential is characterized by X-ray diffractions (XRD). The results demonstrate that the higher the potential,the more obvious is the effect of Fe. The composition’s variation of Fe after deposition in 300 s in different potentials is characterized by X-ray fluorescence analysis (XRF). This indicates that the relative content of Fe is gradually increased when the deposition potential moved positively,and it is consistent with the XRD results obtained. The morphology of the Fe nanowire arrays deposited in -1.20 V, 300 s is characterized by scanning electron microscopy (SEM), indicating that Fe nanowire arrays have a large aspect ratio. The magnetic properties of Fe nanowire arrays are determined by vibrating a sample magnetometer (VSM). The results show that the coercivity is stronger and the ratio of remanence is larger when the applied field is parallel to the axis of Fe nanowire arrays,indicating strong magnetic anisotropy of Fe nanowire arrays.

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备注/Memo

备注/Memo:
Received:2012-10-07;Revised:2013-06-28;Accepted:2013-08-20
Foundation:National Natural Science Foundation of China ( 60906007); the Open Fund of Shenzhen Special Functional Materials Laboratory(T0905)
Corresponding author:Professor Tang Jiaoning. E-mail: tjn@szu.edu.cn
Citation:Su Yikun, Deng Yujun, Huang Xiangyu, et al. Preparation and characterization of Fe nanowire arrays[J]. Journal of Shenzhen University Science and Engineering, 2013, 30(6): 617-622.(in Chinese)
基金项目:国家自然科学基金资助项目(60906007); 深圳市重点实验室开放基金资助项目(T0905)
作者简介:苏轶坤(1977-),女(汉族),河北省石家庄市人,深圳大学副教授、博士. E-mail: yikun@szu.edu.cn
引文:苏轶坤,邓宇骏,黄湘愉,等. Fe纳米线的制备与表征[J]. 深圳大学学报理工版,2013,30(6):617-622.
更新日期/Last Update: 2013-11-20