模板法合成Ag纳米线阵列

Template synthesis of Ag ordered nanowire arrays

以多孔阳极氧化铝为模板,用乙二醇作还原剂,将Ag+在模板的纳米孔道内还原并进行限域生长,制得了Ag纳米线.用X-射线衍射光谱(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)等检测手段对产物进行了表征,结果表明所得Ag纳米线具有面心立方晶体结构,纳米线阵列排列整齐,长度可达10μm,单体纳米线的直径约为60 nm,与所用模板的孔径相当.

Ordered Ag nanowires arrays are fabricated using an effective method, in which Ag ions and glycol react to form silver nanonuclei inside the nanochannels of AAO templates, and then grow into Ag nanowire by confining growth. The nanowires are characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, the transmission electron microscopy（TEM）. The TEM images show that Ag nanowires are abundant and uniform, and the diameter of the Ag nanowire about 60 nm, which correspond to the pore sizes of the templates used. The SEM images show that the Ag nanowires are abundant and well-ordered in large-area, and up to 10 μm in length. The data of X-ray diffraction indicate that the silver nanowire have face-centered-cubic structure.