Ni/Cu双金属纳米线非模板法制备研究∗

摘要

Under a magnetic field,nickel nanowires were synthesized by a template-free method,and Ni/Cu bi-metal nanowires were synthesized using as-prepared nickel nanowires as carriers.The products were character-ized by SEM,TEM,XRD,EDS.The results showed that the Ni/Cu bimetal nanowires had uniform size and morphology,about 200 nm,and were composed of Ni(face-centered cubic,fcc)and Cu(fcc),the content of Ni and Cu in the products were 62.34wt% and 36.37wt%,respectively.%在外加磁场作用下,制备出Ni纳米线,再以Ni纳米线为载体,利用 Ni 置换溶液中的 Cu2＋制备出Ni/Cu双金属纳米线,并进行扫描电镜(SEM)、透射电镜(TEM)、X 射线衍射(XRD)、能谱(EDS)等表征.结果显示样品线性较好、尺寸均匀,约为200 nm,组成为Ni单质和Cu单质,均为面心立方结构,其含量分别为62．34％与36．37％(质量分数).