以柠檬酸氢二铵作为包裹剂,采用一步恒流电沉积法在铜基体上制备出垂直生长的钴纳米片阵列,并采用SEM、XRD及EDX对该产物的形貌、晶体结构以及化学成分进行表征。研究结果显示,包裹剂种类、浓度以及电沉积时间对钴纳米片阵列的形貌具有重要影响。此外,钴纳米片阵列因其特殊的三维结构表现出优异的磁各向异性特征,其中易磁化轴平行于基底方向,而在垂直于基底方向上则具有较好的铁磁性能。
Cobalt nanoplates array standing vertically on the copper substrate were prepared by using ammonium citrate dibasic as complexing agent via one-step electrodeposition method without any template. The morphology, crystal structure, and composition of cobalt nanoplates were characterized by SEM, XRD,EDX. In addition, effects of complexing agents, addition of ammonium citrate dibasic and crystal growth time on morphology of the products were investigated. Owing to the interesting 3D nanostructures, remarkable magnetic anisotropy is found on the cobalt nanoplates. The easy axis of magnetization is parallel to the substrate plane and a distinct enhanced ferromagnetism was exhibited while perpendicular to the copper substrate.
参考文献
| [1] | Natalie A. Frey;Sheng Peng;Kai Cheng .Magnetic nanoparticles: synthesis, functionalization, and applications in bioimaging and magnetic energy storage[J].Chemical Society Reviews,2009(9):2532-2542. |
| [2] | Zhao-Tie Liu;Xin Li;Zhong-Wen Liu .Synthesis and catalytic behaviors of cobalt nanocrystals with special morphologies[J].Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems,2009(3):514-519. |
| [3] | Peng-Gang Yin;Li Jiang;Ting-Ting You .Surface-enhanced Raman spectroscopy with self-assembled cobalt nanoparticle chains: Comparison of theory and experiment[J].Physical chemistry chemical physics: PCCP,2010(36):10781-10785. |
| [4] | Lin Guo;Fang Liang;Ning Wang .Preparation and Characterization of Ring-Shaped Co Nanomaterials[J].Chemistry of Materials: A Publication of the American Chemistry Society,2008(16):5163-5168. |
| [5] | Yang SG.;Ni G.;Yu DL.;Tang SL.;Du YW.;Zhu H. .A study of cobalt nanowire arrays[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2000(19):2388-2390. |
| [6] | Xu R;Xie T;Zhao YG;Li YD .Single-crystal metal nanoplatelets: Cobalt, nickel, copper, and silver[J].Crystal growth & design,2007(9):1904-1911. |
| [7] | Sharma, S;Barman, A;Sharma, M;Shelford, LR;Kruglyak, VV;Hicken, RJ .Structural and magnetic properties of electrodeposited Cobalt nanowire arrays[J].Solid State Communications,2009(39/40):1650-1653. |
| [8] | Zhi Liang Bao;Karen L. Kavanagh .Aligned Co nanodiscs by electrodeposition on GaAs[J].Journal of Crystal Growth,2006(2):514-517. |
| [9] | Xie BQ;Qian YT;Zhang SY;Fu SQ;Yu WC .A hydrothermal reduction route to single-crystalline hexagonal cobalt nanowires[J].European journal of inorganic chemistry,2006(12):2454-2459. |
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