【作者】 杭弢； 章文靖； 胡安民； 李明；

【Author】 Hang Tao,Zhang Wenjing,Hu Anmin,Li Ming (School of Material s Science and Eng.,Shanghai Jiao Tong Univ.,Shanghai 200240,China)

【机构】 上海交通大学材料科学与工程学院微电子材料与技术研究所；

【摘要】 使用定向电结晶方法制备了镍基针锥阵列材料。通过在传统的镀镍液中添加结晶调整剂,并控制电沉积条件,可以很容易地在任何金属基底上获得纳米针锥阵列。X射线衍射(XRD)及透射电子显微镜(TEM)结果表明,定向电结晶法获得的镍基针锥晶材料的每一个针锥晶体均为单晶体,且生长轴向为[110]方向。磁性测试结果表表明该方法制得的镍纳米针锥具有磁各向异性,且其磁单畴特性使其磁性显著增强。更多还原

【Abstract】 This work reports the synthesis of Ni nanocones by a one-step electrodeposition method without any template.With the addition of crystallization modifier in the nickel plating solution,the novel Ni conical structure can be easily deposited onto different metal surfaces.The as-prepared nickel nanocones grow preferentially along[011]directions with very sharp tips.The conical structures are single crystalline without any disruption of the lattice planes.In addition,the Ni nanocone structure is demonstrated to show magnetocrystalline anisotropy and enhance the magnetic properties when compared with other Ni nanostructures.更多还原